22955724 has 144 divisors (see below), whose sum is σ = 69713280. Its totient is φ = 6531840.

The previous prime is 22955689. The next prime is 22955747. The reversal of 22955724 is 42755922.

It is a happy number.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 203092 + ... + 203204.

It is an arithmetic number, because the mean of its divisors is an integer number (484120).

Almost surely, 2^22955724 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 22955724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34856640).

22955724 is an abundant number, since it is smaller than the sum of its proper divisors (46757556).

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

22955724 is a wasteful number, since it uses less digits than its factorization.

22955724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162 (or 148 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 22955724 is about 4791.2132075290. The cubic root of 22955724 is about 284.2040951761.

The spelling of 22955724 in words is "twenty-two million, nine hundred fifty-five thousand, seven hundred twenty-four".