28056572 has 12 divisors (see below), whose sum is σ = 50792280. Its totient is φ = 13544496.

The previous prime is 28056569. The next prime is 28056583. The reversal of 28056572 is 27565082.

It is a congruent number.

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, 120818 + ... + 121049.

It is an arithmetic number, because the mean of its divisors is an integer number (4232690).

Almost surely, 2^28056572 is an apocalyptic number.

It is an amenable number.

28056572 is a deficient number, since it is larger than the sum of its proper divisors (22735708).

28056572 is a wasteful number, since it uses less digits than its factorization.

28056572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241900 (or 241898 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 28056572 is about 5296.8454763189. The cubic root of 28056572 is about 303.8632666486.

The spelling of 28056572 in words is "twenty-eight million, fifty-six thousand, five hundred seventy-two".