22724364 has 96 divisors (see below), whose sum is σ = 61014016. Its totient is φ = 6531840.

The previous prime is 22724363. The next prime is 22724417. The reversal of 22724364 is 46342722.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22724363) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 178869 + ... + 178995.

Almost surely, 2^22724364 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22724364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30507008).

22724364 is an abundant number, since it is smaller than the sum of its proper divisors (38289652).

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

22724364 is a wasteful number, since it uses less digits than its factorization.

22724364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215 (or 213 counting only the distinct ones).

The product of its digits is 16128, while the sum is 30.

The square root of 22724364 is about 4767.0078665763. The cubic root of 22724364 is about 283.2460827847.

The spelling of 22724364 in words is "twenty-two million, seven hundred twenty-four thousand, three hundred sixty-four".