23431238 has 8 divisors (see below), whose sum is σ = 35187480. Its totient is φ = 11702080.

The previous prime is 23431231. The next prime is 23431241. The reversal of 23431238 is 83213432.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23431231) 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, 4448 + ... + 8163.

It is an arithmetic number, because the mean of its divisors is an integer number (4398435).

Almost surely, 2^23431238 is an apocalyptic number.

23431238 is a deficient number, since it is larger than the sum of its proper divisors (11756242).

23431238 is a wasteful number, since it uses less digits than its factorization.

23431238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13542.

The product of its digits is 3456, while the sum is 26.

The square root of 23431238 is about 4840.5824029759. The cubic root of 23431238 is about 286.1530714327.

The spelling of 23431238 in words is "twenty-three million, four hundred thirty-one thousand, two hundred thirty-eight".