28571044 has 12 divisors (see below), whose sum is σ = 50071168. Its totient is φ = 14265000.

The previous prime is 28571021. The next prime is 28571077. The reversal of 28571044 is 44017582.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 28570997 and 28571015.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1752 + ... + 7759.

Almost surely, 2^28571044 is an apocalyptic number.

It is an amenable number.

28571044 is a deficient number, since it is larger than the sum of its proper divisors (21500124).

28571044 is a wasteful number, since it uses less digits than its factorization.

28571044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10266 (or 10264 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 28571044 is about 5345.1888647643. The cubic root of 28571044 is about 305.7093371047.

The spelling of 28571044 in words is "twenty-eight million, five hundred seventy-one thousand, forty-four".