23277138 has 16 divisors (see below), whose sum is σ = 46608096. Its totient is φ = 7750080.

The previous prime is 23277091. The next prime is 23277157. The reversal of 23277138 is 83177232.

It is a junction number, because it is equal to n+sod(n) for n = 23277099 and 23277108.

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, 5370 + ... + 8682.

It is an arithmetic number, because the mean of its divisors is an integer number (2913006).

Almost surely, 2^23277138 is an apocalyptic number.

23277138 is an abundant number, since it is smaller than the sum of its proper divisors (23330958).

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

23277138 is a wasteful number, since it uses less digits than its factorization.

23277138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4489.

The product of its digits is 14112, while the sum is 33.

The square root of 23277138 is about 4824.6386393180. The cubic root of 23277138 is about 285.5243777766.

The spelling of 23277138 in words is "twenty-three million, two hundred seventy-seven thousand, one hundred thirty-eight".