40231531332 has 60 divisors (see below), whose sum is σ = 105257774160. Its totient is φ = 13399722864.

The previous prime is 40231531331. The next prime is 40231531337. The reversal of 40231531332 is 23313513204.

40231531332 is a `hidden beast` number, since 4 + 0 + 2 + 315 + 313 + 32 = 666.

It is a super-2 number, since 2×40231531332² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 40231531296 and 40231531305.

It is not an unprimeable number, because it can be changed into a prime (40231531331) 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, 358603 + ... + 457229.

It is an arithmetic number, because the mean of its divisors is an integer number (1754296236).

Almost surely, 2^40231531332 is an apocalyptic number.

It is an amenable number.

40231531332 is an abundant number, since it is smaller than the sum of its proper divisors (65026242828).

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

40231531332 is a wasteful number, since it uses less digits than its factorization.

40231531332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99902 (or 99891 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The spelling of 40231531332 in words is "forty billion, two hundred thirty-one million, five hundred thirty-one thousand, three hundred thirty-two".