22919072 has 24 divisors (see below), whose sum is σ = 49224672. Its totient is φ = 10417600.

The previous prime is 22919059. The next prime is 22919087. The reversal of 22919072 is 27091922.

It is a super-2 number, since 2×22919072² = 1050567722682368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32204 + ... + 32907.

It is an arithmetic number, because the mean of its divisors is an integer number (2051028).

Almost surely, 2^22919072 is an apocalyptic number.

22919072 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22919072 is an abundant number, since it is smaller than the sum of its proper divisors (26305600).

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

22919072 is a wasteful number, since it uses less digits than its factorization.

22919072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65132 (or 65124 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 22919072 is about 4787.3867610629. The cubic root of 22919072 is about 284.0527575069.

The spelling of 22919072 in words is "twenty-two million, nine hundred nineteen thousand, seventy-two".