28574455 has 16 divisors (see below), whose sum is σ = 42202944. Its totient is φ = 18086400.

The previous prime is 28574443. The next prime is 28574519. The reversal of 28574455 is 55447582.

It is not a de Polignac number, because 28574455 - 2¹¹ = 28572407 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30946 + ... + 31855.

It is an arithmetic number, because the mean of its divisors is an integer number (2637684).

Almost surely, 2^28574455 is an apocalyptic number.

28574455 is a deficient number, since it is larger than the sum of its proper divisors (13628489).

28574455 is a wasteful number, since it uses less digits than its factorization.

28574455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62826.

The product of its digits is 224000, while the sum is 40.

The square root of 28574455 is about 5345.5079272226. The cubic root of 28574455 is about 305.7215024874.

The spelling of 28574455 in words is "twenty-eight million, five hundred seventy-four thousand, four hundred fifty-five".