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40878712368 = 2433132372409
BaseRepresentation
bin100110000100100011…
…111010011000110000
310220111220111202021000
4212010203322120300
51132204422243433
630440204402000
72645004215304
oct460443723060
9126456452230
1040878712368
1116377a7070a
127b0a246300
133b16134700
141d9b185d04
1510e3c0b113
hex9848fa630

40878712368 has 360 divisors, whose sum is σ = 130903340400. Its totient is φ = 12208195584.

The previous prime is 40878712361. The next prime is 40878712379. The reversal of 40878712368 is 86321787804.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (40878712361) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 99947748 + ... + 99948156.

It is an arithmetic number, because the mean of its divisors is an integer number (363620390).

Almost surely, 240878712368 is an apocalyptic number.

40878712368 is a gapful number since it is divisible by the number (48) 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 40878712368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65451670200).

40878712368 is an abundant number, since it is smaller than the sum of its proper divisors (90024628032).

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

40878712368 is a wasteful number, since it uses less digits than its factorization.

40878712368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526 (or 464 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 54.

The spelling of 40878712368 in words is "forty billion, eight hundred seventy-eight million, seven hundred twelve thousand, three hundred sixty-eight".