40520075736 has 32 divisors (see below), whose sum is σ = 115771645440. Its totient is φ = 11577164448.

The previous prime is 40520075699. The next prime is 40520075741. The reversal of 40520075736 is 63757002504.

It is a junction number, because it is equal to n+sod(n) for n = 40520075694 and 40520075703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120595296 + ... + 120595631.

It is an arithmetic number, because the mean of its divisors is an integer number (3617863920).

Almost surely, 2^40520075736 is an apocalyptic number.

It is an amenable number.

40520075736 is an abundant number, since it is smaller than the sum of its proper divisors (75251569704).

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

40520075736 is a wasteful number, since it uses less digits than its factorization.

40520075736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241190943 (or 241190939 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 39.

The spelling of 40520075736 in words is "forty billion, five hundred twenty million, seventy-five thousand, seven hundred thirty-six".