23153660 has 24 divisors (see below), whose sum is σ = 51483600. Its totient is φ = 8716544.

The previous prime is 23153653. The next prime is 23153681. The reversal of 23153660 is 6635132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33710 + ... + 34389.

It is an arithmetic number, because the mean of its divisors is an integer number (2145150).

Almost surely, 2^23153660 is an apocalyptic number.

23153660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23153660 is an abundant number, since it is smaller than the sum of its proper divisors (28329940).

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

23153660 is a wasteful number, since it uses less digits than its factorization.

23153660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68125 (or 68123 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 23153660 is about 4811.8250175999. The cubic root of 23153660 is about 285.0186096394.

Adding to 23153660 its reverse (6635132), we get a palindrome (29788792).

The spelling of 23153660 in words is "twenty-three million, one hundred fifty-three thousand, six hundred sixty".