22454723 has 4 divisors (see below), whose sum is σ = 22739040. Its totient is φ = 22170408.

The previous prime is 22454701. The next prime is 22454741. The reversal of 22454723 is 32745422.

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 22454723 - 2⁶ = 22454659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22454753) 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, 142040 + ... + 142197.

It is an arithmetic number, because the mean of its divisors is an integer number (5684760).

Almost surely, 2^22454723 is an apocalyptic number.

22454723 is a deficient number, since it is larger than the sum of its proper divisors (284317).

22454723 is an equidigital number, since it uses as much as digits as its factorization.

22454723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284316.

The product of its digits is 13440, while the sum is 29.

The square root of 22454723 is about 4738.6414719833. The cubic root of 22454723 is about 282.1213157755.

The spelling of 22454723 in words is "twenty-two million, four hundred fifty-four thousand, seven hundred twenty-three".