40012532832 has 48 divisors (see below), whose sum is σ = 105121240560. Its totient is φ = 13326292992.

The previous prime is 40012532831. The next prime is 40012532863. The reversal of 40012532832 is 23823521004.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 40012532832.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40012532831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60157 + ... + 289212.

It is an arithmetic number, because the mean of its divisors is an integer number (2190025845).

Almost surely, 2^40012532832 is an apocalyptic number.

It is an amenable number.

40012532832 is an abundant number, since it is smaller than the sum of its proper divisors (65108707728).

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

40012532832 is a wasteful number, since it uses less digits than its factorization.

40012532832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350575 (or 350567 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 40012532832 in words is "forty billion, twelve million, five hundred thirty-two thousand, eight hundred thirty-two".