28575045 has 32 divisors (see below), whose sum is σ = 53792640. Its totient is φ = 14342400.

The previous prime is 28574999. The next prime is 28575061. The reversal of 28575045 is 54057582.

It is a happy number.

It is not a de Polignac number, because 28575045 - 2¹⁴ = 28558661 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3931 + ... + 8520.

It is an arithmetic number, because the mean of its divisors is an integer number (1681020).

Almost surely, 2^28575045 is an apocalyptic number.

It is an amenable number.

28575045 is a deficient number, since it is larger than the sum of its proper divisors (25217595).

28575045 is a wasteful number, since it uses less digits than its factorization.

28575045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12482 (or 12476 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 36.

The square root of 28575045 is about 5345.5631134615. The cubic root of 28575045 is about 305.7236066330.

The spelling of 28575045 in words is "twenty-eight million, five hundred seventy-five thousand, forty-five".