32304428 has 12 divisors (see below), whose sum is σ = 60881520. Its totient is φ = 14909712.

The previous prime is 32304421. The next prime is 32304431. The reversal of 32304428 is 82440323.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 32304397 and 32304406.

It is not an unprimeable number, because it can be changed into a prime (32304421) 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, 310568 + ... + 310671.

It is an arithmetic number, because the mean of its divisors is an integer number (5073460).

Almost surely, 2^32304428 is an apocalyptic number.

It is an amenable number.

32304428 is a deficient number, since it is larger than the sum of its proper divisors (28577092).

32304428 is a wasteful number, since it uses less digits than its factorization.

32304428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621256 (or 621254 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 32304428 is about 5683.6984437952. The cubic root of 32304428 is about 318.4838040013.

The spelling of 32304428 in words is "thirty-two million, three hundred four thousand, four hundred twenty-eight".