22823431 has 4 divisors (see below), whose sum is σ = 22836472. Its totient is φ = 22810392.

The previous prime is 22823417. The next prime is 22823453. The reversal of 22823431 is 13432822.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22823431 - 2⁷ = 22823303 is a prime.

It is a super-2 number, since 2×22823431² = 1041818005223522, 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 = 22823396 and 22823405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22823131) 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, 3396 + ... + 7561.

It is an arithmetic number, because the mean of its divisors is an integer number (5709118).

Almost surely, 2^22823431 is an apocalyptic number.

22823431 is a deficient number, since it is larger than the sum of its proper divisors (13041).

22823431 is a wasteful number, since it uses less digits than its factorization.

22823431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13040.

The product of its digits is 2304, while the sum is 25.

The square root of 22823431 is about 4777.3874659692. The cubic root of 22823431 is about 283.6570904261.

The spelling of 22823431 in words is "twenty-two million, eight hundred twenty-three thousand, four hundred thirty-one".