23088428 has 24 divisors (see below), whose sum is σ = 45502464. Its totient is φ = 10155600.

The previous prime is 23088427. The next prime is 23088433. The reversal of 23088428 is 82488032.

It is a super-2 number, since 2×23088428² = 1066151015022368, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (23088427) 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, 7100 + ... + 9827.

It is an arithmetic number, because the mean of its divisors is an integer number (1895936).

Almost surely, 2^23088428 is an apocalyptic number.

It is an amenable number.

23088428 is a deficient number, since it is larger than the sum of its proper divisors (22414036).

23088428 is a wasteful number, since it uses less digits than its factorization.

23088428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16973 (or 16971 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 35.

The square root of 23088428 is about 4805.0419353009. The cubic root of 23088428 is about 284.7506920013.

The spelling of 23088428 in words is "twenty-three million, eighty-eight thousand, four hundred twenty-eight".