23440623 has 16 divisors (see below), whose sum is σ = 33072000. Its totient is φ = 14726880.

The previous prime is 23440609. The next prime is 23440631. The reversal of 23440623 is 32604432.

It is a happy number.

It is not a de Polignac number, because 23440623 - 2¹⁶ = 23375087 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23440593 and 23440602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23440663) 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, 11053 + ... + 13001.

It is an arithmetic number, because the mean of its divisors is an integer number (2067000).

Almost surely, 2^23440623 is an apocalyptic number.

23440623 is a deficient number, since it is larger than the sum of its proper divisors (9631377).

23440623 is a wasteful number, since it uses less digits than its factorization.

23440623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2182.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 23440623 is about 4841.5517140685. The cubic root of 23440623 is about 286.1912709808.

The spelling of 23440623 in words is "twenty-three million, four hundred forty thousand, six hundred twenty-three".