22596728 has 32 divisors (see below), whose sum is σ = 52824960. Its totient is φ = 8803680.

The previous prime is 22596727. The next prime is 22596767. The reversal of 22596728 is 82769522.

It is a super-2 number, since 2×22596728² = 1021224232611968, which contains 22 as substring.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22596727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17726 + ... + 18957.

It is an arithmetic number, because the mean of its divisors is an integer number (1650780).

Almost surely, 2^22596728 is an apocalyptic number.

22596728 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

22596728 is an abundant number, since it is smaller than the sum of its proper divisors (30228232).

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

22596728 is a wasteful number, since it uses less digits than its factorization.

22596728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36707 (or 36703 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The square root of 22596728 is about 4753.6015819587. The cubic root of 22596728 is about 282.7147837968.

The spelling of 22596728 in words is "twenty-two million, five hundred ninety-six thousand, seven hundred twenty-eight".