23426638 has 16 divisors (see below), whose sum is σ = 36406656. Its totient is φ = 11293920.

The previous prime is 23426609. The next prime is 23426651. The reversal of 23426638 is 83662432.

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, 22620 + ... + 23632.

It is an arithmetic number, because the mean of its divisors is an integer number (2275416).

Almost surely, 2^23426638 is an apocalyptic number.

23426638 is a deficient number, since it is larger than the sum of its proper divisors (12980018).

23426638 is a wasteful number, since it uses less digits than its factorization.

23426638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419.

The product of its digits is 41472, while the sum is 34.

The square root of 23426638 is about 4840.1072302171. The cubic root of 23426638 is about 286.1343444342.

The spelling of 23426638 in words is "twenty-three million, four hundred twenty-six thousand, six hundred thirty-eight".