40256254188 has 18 divisors (see below), whose sum is σ = 101758864844. Its totient is φ = 13418751384.

The previous prime is 40256254177. The next prime is 40256254189. The reversal of 40256254188 is 88145265204.

40256254188 is a `hidden beast` number, since 4 + 0 + 2 + 5 + 625 + 4 + 18 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (40256254189) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 559114606 + ... + 559114677.

Almost surely, 2^40256254188 is an apocalyptic number.

It is an amenable number.

40256254188 is an abundant number, since it is smaller than the sum of its proper divisors (61502610656).

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

40256254188 is a wasteful number, since it uses less digits than its factorization.

40256254188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118229293 (or 1118229288 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 45.

The spelling of 40256254188 in words is "forty billion, two hundred fifty-six million, two hundred fifty-four thousand, one hundred eighty-eight".