22724754 has 48 divisors (see below), whose sum is σ = 50051232. Its totient is φ = 6873984.

The previous prime is 22724753. The next prime is 22724789. The reversal of 22724754 is 45742722.

It is a happy number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (22724753) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73869 + ... + 74175.

It is an arithmetic number, because the mean of its divisors is an integer number (1042734).

Almost surely, 2^22724754 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22724754, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25025616).

22724754 is an abundant number, since it is smaller than the sum of its proper divisors (27326478).

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

22724754 is a wasteful number, since it uses less digits than its factorization.

22724754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411 (or 398 counting only the distinct ones).

The product of its digits is 31360, while the sum is 33.

The square root of 22724754 is about 4767.0487725636. The cubic root of 22724754 is about 283.2477031504.

The spelling of 22724754 in words is "twenty-two million, seven hundred twenty-four thousand, seven hundred fifty-four".