28574444 has 12 divisors (see below), whose sum is σ = 50049384. Its totient is φ = 14274624.

The previous prime is 28574443. The next prime is 28574519. The reversal of 28574444 is 44447582.

It is a hoax number, since the sum of its digits (38) 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 = 28574398 and 28574407.

It is not an unprimeable number, because it can be changed into a prime (28574443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3524 + ... + 8340.

It is an arithmetic number, because the mean of its divisors is an integer number (4170782).

Almost surely, 2^28574444 is an apocalyptic number.

It is an amenable number.

28574444 is a deficient number, since it is larger than the sum of its proper divisors (21474940).

28574444 is a wasteful number, since it uses less digits than its factorization.

28574444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6304 (or 6302 counting only the distinct ones).

The product of its digits is 143360, while the sum is 38.

The square root of 28574444 is about 5345.5068983212. The cubic root of 28574444 is about 305.7214632573.

The spelling of 28574444 in words is "twenty-eight million, five hundred seventy-four thousand, four hundred forty-four".