28522790 has 16 divisors (see below), whose sum is σ = 52997760. Its totient is φ = 11040960.

The previous prime is 28522789. The next prime is 28522799. The reversal of 28522790 is 9722582.

It is a self number, because there is not a number n which added to its sum of digits gives 28522790.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28522799) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 45695 + ... + 46314.

It is an arithmetic number, because the mean of its divisors is an integer number (3312360).

Almost surely, 2^28522790 is an apocalyptic number.

28522790 is a deficient number, since it is larger than the sum of its proper divisors (24474970).

28522790 is a wasteful number, since it uses less digits than its factorization.

28522790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92047.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 28522790 is about 5340.6731785422. The cubic root of 28522790 is about 305.5371346593.

The spelling of 28522790 in words is "twenty-eight million, five hundred twenty-two thousand, seven hundred ninety".