28568154 has 16 divisors (see below), whose sum is σ = 58105440. Its totient is φ = 9361200.

The previous prime is 28568147. The next prime is 28568159. The reversal of 28568154 is 45186582.

It is a super-2 number, since 2×28568154² = 1632278845935432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28568159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39997 + ... + 40704.

It is an arithmetic number, because the mean of its divisors is an integer number (3631590).

Almost surely, 2^28568154 is an apocalyptic number.

28568154 is an abundant number, since it is smaller than the sum of its proper divisors (29537286).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28568154 is a wasteful number, since it uses less digits than its factorization.

28568154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80765.

The product of its digits is 76800, while the sum is 39.

The square root of 28568154 is about 5344.9185213621. The cubic root of 28568154 is about 305.6990291186.

The spelling of 28568154 in words is "twenty-eight million, five hundred sixty-eight thousand, one hundred fifty-four".