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40408840048800 = 253521961109133277
BaseRepresentation
bin10010011000000011010101…
…00011101001000010100000
312022002001021112121101112010
421030001222203221002200
520244024301023030200
6221535322001232520
711340304504111536
oct1114015243510240
9168061245541463
1040408840048800
111196a324829a23
124647606932740
1319716ca4b18c2
149d9b26738156
154a11d7749150
hex24c06a8e90a0

40408840048800 has 576 divisors, whose sum is σ = 142015279190400. Its totient is φ = 9949000089600.

The previous prime is 40408840048799. The next prime is 40408840048807. The reversal of 40408840048800 is 884004880404.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 40408840048800.

It is not an unprimeable number, because it can be changed into a prime (40408840048807) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 303127762 + ... + 303261038.

It is an arithmetic number, because the mean of its divisors is an integer number (246554304150).

Almost surely, 240408840048800 is an apocalyptic number.

40408840048800 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40408840048800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71007639595200).

40408840048800 is an abundant number, since it is smaller than the sum of its proper divisors (101606439141600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40408840048800 is a wasteful number, since it uses less digits than its factorization.

40408840048800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133489 (or 133476 counting only the distinct ones).

The product of its (nonzero) digits is 1048576, while the sum is 48.

The spelling of 40408840048800 in words is "forty trillion, four hundred eight billion, eight hundred forty million, forty-eight thousand, eight hundred".