22915423 has 12 divisors (see below), whose sum is σ = 24220440. Its totient is φ = 21654416.

The previous prime is 22915411. The next prime is 22915427. The reversal of 22915423 is 32451922.

It is not a de Polignac number, because 22915423 - 2⁹ = 22914911 is a prime.

It is a super-2 number, since 2×22915423² = 1050233222537858, 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 = 22915391 and 22915400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22915427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100836 + ... + 101062.

It is an arithmetic number, because the mean of its divisors is an integer number (2018370).

Almost surely, 2^22915423 is an apocalyptic number.

22915423 is a deficient number, since it is larger than the sum of its proper divisors (1305017).

22915423 is an equidigital number, since it uses as much as digits as its factorization.

22915423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374 (or 315 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 22915423 is about 4787.0056402724. The cubic root of 22915423 is about 284.0376818016.

The spelling of 22915423 in words is "twenty-two million, nine hundred fifteen thousand, four hundred twenty-three".