23279136 has 24 divisors (see below), whose sum is σ = 61107984. Its totient is φ = 7759680.

The previous prime is 23279131. The next prime is 23279153. The reversal of 23279136 is 63197232.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 23279097 and 23279106.

It is not an unprimeable number, because it can be changed into a prime (23279131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121150 + ... + 121341.

It is an arithmetic number, because the mean of its divisors is an integer number (2546166).

Almost surely, 2^23279136 is an apocalyptic number.

It is an amenable number.

23279136 is an abundant number, since it is smaller than the sum of its proper divisors (37828848).

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

23279136 is a wasteful number, since it uses less digits than its factorization.

23279136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242504 (or 242496 counting only the distinct ones).

The product of its digits is 13608, while the sum is 33.

The square root of 23279136 is about 4824.8456970146. The cubic root of 23279136 is about 285.5325468992.

The spelling of 23279136 in words is "twenty-three million, two hundred seventy-nine thousand, one hundred thirty-six".