40304432 has 40 divisors (see below), whose sum is σ = 92330400. Its totient is φ = 16676352.

The previous prime is 40304423. The next prime is 40304443. The reversal of 40304432 is 23440304.

It is a happy 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, 2957 + ... + 9452.

It is an arithmetic number, because the mean of its divisors is an integer number (2308260).

Almost surely, 2^40304432 is an apocalyptic number.

It is an amenable number.

40304432 is an abundant number, since it is smaller than the sum of its proper divisors (52025968).

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

40304432 is a wasteful number, since it uses less digits than its factorization.

40304432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12453 (or 12447 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 40304432 is about 6348.5771634280. The cubic root of 40304432 is about 342.8606164992.

Adding to 40304432 its reverse (23440304), we get a palindrome (63744736).

The spelling of 40304432 in words is "forty million, three hundred four thousand, four hundred thirty-two".