23274639 has 24 divisors (see below), whose sum is σ = 35692800. Its totient is φ = 14573520.

The previous prime is 23274637. The next prime is 23274679. The reversal of 23274639 is 93647232.

It is a happy number.

It is not a de Polignac number, because 23274639 - 2¹ = 23274637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23274631) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21882 + ... + 22920.

It is an arithmetic number, because the mean of its divisors is an integer number (1487200).

Almost surely, 2^23274639 is an apocalyptic number.

23274639 is a deficient number, since it is larger than the sum of its proper divisors (12418161).

23274639 is a wasteful number, since it uses less digits than its factorization.

23274639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195 (or 1192 counting only the distinct ones).

The product of its digits is 54432, while the sum is 36.

The square root of 23274639 is about 4824.3796492399. The cubic root of 23274639 is about 285.5141595823.

The spelling of 23274639 in words is "twenty-three million, two hundred seventy-four thousand, six hundred thirty-nine".