40312832 has 112 divisors (see below), whose sum is σ = 99608640. Its totient is φ = 15925248.

The previous prime is 40312829. The next prime is 40312873. The reversal of 40312832 is 23821304.

It is a tau number, because it is divible by the number of its divisors (112).

It is a junction number, because it is equal to n+sod(n) for n = 40312798 and 40312807.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1089518 + ... + 1089554.

Almost surely, 2^40312832 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40312832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49804320).

40312832 is an abundant number, since it is smaller than the sum of its proper divisors (59295808).

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

40312832 is an equidigital number, since it uses as much as digits as its factorization.

40312832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 40312832 is about 6349.2386945208. The cubic root of 40312832 is about 342.8844338065.

The spelling of 40312832 in words is "forty million, three hundred twelve thousand, eight hundred thirty-two".