23372431 has 4 divisors (see below), whose sum is σ = 23384592. Its totient is φ = 23360272.

The previous prime is 23372423. The next prime is 23372443. The reversal of 23372431 is 13427332.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 23372431 - 2³ = 23372423 is a prime.

It is a super-2 number, since 2×23372431² = 1092541061699522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23372396 and 23372405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23372471) 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, 2491 + ... + 7276.

It is an arithmetic number, because the mean of its divisors is an integer number (5846148).

Almost surely, 2^23372431 is an apocalyptic number.

23372431 is a deficient number, since it is larger than the sum of its proper divisors (12161).

23372431 is an equidigital number, since it uses as much as digits as its factorization.

23372431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12160.

The product of its digits is 3024, while the sum is 25.

The square root of 23372431 is about 4834.5042144981. The cubic root of 23372431 is about 285.9134781556.

Adding to 23372431 its reverse (13427332), we get a palindrome (36799763).

The spelling of 23372431 in words is "twenty-three million, three hundred seventy-two thousand, four hundred thirty-one".