23994438 has 32 divisors (see below), whose sum is σ = 51910656. Its totient is φ = 7350048.

The previous prime is 23994437. The next prime is 23994449. The reversal of 23994438 is 83449932.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 23994438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23994431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21531 + ... + 22617.

It is an arithmetic number, because the mean of its divisors is an integer number (1622208).

Almost surely, 2^23994438 is an apocalyptic number.

23994438 is an abundant number, since it is smaller than the sum of its proper divisors (27916218).

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

23994438 is a wasteful number, since it uses less digits than its factorization.

23994438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388.

The product of its digits is 186624, while the sum is 42.

The square root of 23994438 is about 4898.4117834253. The cubic root of 23994438 is about 288.4276295841.

The spelling of 23994438 in words is "twenty-three million, nine hundred ninety-four thousand, four hundred thirty-eight".