40807232 has 56 divisors (see below), whose sum is σ = 83941920. Its totient is φ = 19673600.

The previous prime is 40807229. The next prime is 40807241. The reversal of 40807232 is 23270804.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381323 + ... + 381429.

Almost surely, 2^40807232 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 40807232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41970960).

40807232 is an abundant number, since it is smaller than the sum of its proper divisors (43134688).

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

40807232 is a wasteful number, since it uses less digits than its factorization.

40807232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 40807232 is about 6388.0538507436. The cubic root of 40807232 is about 344.2804635417.

The spelling of 40807232 in words is "forty million, eight hundred seven thousand, two hundred thirty-two".