23257198 has 16 divisors (see below), whose sum is σ = 35774784. Its totient is φ = 11334400.

The previous prime is 23257193. The next prime is 23257237. The reversal of 23257198 is 89175232.

It is a super-2 number, since 2×23257198² = 1081794517622408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23257193) 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, 37386 + ... + 38002.

It is an arithmetic number, because the mean of its divisors is an integer number (2235924).

Almost surely, 2^23257198 is an apocalyptic number.

23257198 is a deficient number, since it is larger than the sum of its proper divisors (12517586).

23257198 is a wasteful number, since it uses less digits than its factorization.

23257198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067.

The product of its digits is 30240, while the sum is 37.

The square root of 23257198 is about 4822.5717205657. The cubic root of 23257198 is about 285.4428244720.

The spelling of 23257198 in words is "twenty-three million, two hundred fifty-seven thousand, one hundred ninety-eight".