40031982972 has 60 divisors (see below), whose sum is σ = 105068662776. Its totient is φ = 13290804000.

The previous prime is 40031982971. The next prime is 40031983031. The reversal of 40031982972 is 27928913004.

40031982972 is a `hidden beast` number, since 40 + 0 + 319 + 8 + 297 + 2 = 666.

40031982972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40031982971) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 164803 + ... + 327450.

Almost surely, 2^40031982972 is an apocalyptic number.

It is an amenable number.

40031982972 is an abundant number, since it is smaller than the sum of its proper divisors (65036679804).

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

40031982972 is a wasteful number, since it uses less digits than its factorization.

40031982972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492520 (or 492509 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 40031982972 in words is "forty billion, thirty-one million, nine hundred eighty-two thousand, nine hundred seventy-two".