22723744 has 24 divisors (see below), whose sum is σ = 46182528. Its totient is φ = 10994880.

The previous prime is 22723741. The next prime is 22723759. The reversal of 22723744 is 44732722.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (22723741) 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, 10462 + ... + 12445.

It is an arithmetic number, because the mean of its divisors is an integer number (1924272).

Almost surely, 2^22723744 is an apocalyptic number.

It is an amenable number.

22723744 is an abundant number, since it is smaller than the sum of its proper divisors (23458784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22723744 is a wasteful number, since it uses less digits than its factorization.

22723744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22948 (or 22940 counting only the distinct ones).

The product of its digits is 18816, while the sum is 31.

The square root of 22723744 is about 4766.9428358226. The cubic root of 22723744 is about 283.2435067805.

The spelling of 22723744 in words is "twenty-two million, seven hundred twenty-three thousand, seven hundred forty-four".