28574432 has 12 divisors (see below), whose sum is σ = 56255976. Its totient is φ = 14287200.

The previous prime is 28574431. The next prime is 28574437. The reversal of 28574432 is 23447582.

It is a junction number, because it is equal to n+sod(n) for n = 28574392 and 28574401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28574431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 446444 + ... + 446507.

It is an arithmetic number, because the mean of its divisors is an integer number (4687998).

Almost surely, 2^28574432 is an apocalyptic number.

It is an amenable number.

28574432 is a deficient number, since it is larger than the sum of its proper divisors (27681544).

28574432 is an equidigital number, since it uses as much as digits as its factorization.

28574432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892961 (or 892953 counting only the distinct ones).

The product of its digits is 53760, while the sum is 35.

The square root of 28574432 is about 5345.5057758831. The cubic root of 28574432 is about 305.7214204608.

The spelling of 28574432 in words is "twenty-eight million, five hundred seventy-four thousand, four hundred thirty-two".