40041520040 has 64 divisors (see below), whose sum is σ = 92330280000. Its totient is φ = 15619279360.

The previous prime is 40041520033. The next prime is 40041520069. The reversal of 40041520040 is 4002514004.

It is a super-2 number, since 2×40041520040² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 40041519994 and 40041520021.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5800511 + ... + 5807409.

It is an arithmetic number, because the mean of its divisors is an integer number (1442660625).

Almost surely, 2^40041520040 is an apocalyptic number.

40041520040 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 40041520040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46165140000).

40041520040 is an abundant number, since it is smaller than the sum of its proper divisors (52288759960).

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

40041520040 is a wasteful number, since it uses less digits than its factorization.

40041520040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10490 (or 10486 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The spelling of 40041520040 in words is "forty billion, forty-one million, five hundred twenty thousand, forty".