40328832 has 32 divisors (see below), whose sum is σ = 107124480. Its totient is φ = 13442816.

The previous prime is 40328831. The next prime is 40328843. The reversal of 40328832 is 23882304.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 40328832.

It is not an unprimeable number, because it can be changed into a prime (40328831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52128 + ... + 52895.

It is an arithmetic number, because the mean of its divisors is an integer number (3347640).

Almost surely, 2^40328832 is an apocalyptic number.

It is an amenable number.

40328832 is an abundant number, since it is smaller than the sum of its proper divisors (66795648).

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

40328832 is a wasteful number, since it uses less digits than its factorization.

40328832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105040 (or 105028 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 40328832 is about 6350.4985631051. The cubic root of 40328832 is about 342.9297909547.

The spelling of 40328832 in words is "forty million, three hundred twenty-eight thousand, eight hundred thirty-two".