40252115140 has 72 divisors (see below), whose sum is σ = 86741838792. Its totient is φ = 15685954560.

The previous prime is 40252115131. The next prime is 40252115179. The reversal of 40252115140 is 4151125204.

It can be written as a sum of positive squares in 12 ways, for example, as 18832621824 + 21419493316 = 137232^2 + 146354^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14493432 + ... + 14496208.

It is an arithmetic number, because the mean of its divisors is an integer number (1204747761).

Almost surely, 2^40252115140 is an apocalyptic number.

It is an amenable number.

40252115140 is an abundant number, since it is smaller than the sum of its proper divisors (46489723652).

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

40252115140 is a wasteful number, since it uses less digits than its factorization.

40252115140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3065 (or 2954 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The spelling of 40252115140 in words is "forty billion, two hundred fifty-two million, one hundred fifteen thousand, one hundred forty".