22153960 has 16 divisors (see below), whose sum is σ = 49846500. Its totient is φ = 8861568.

The previous prime is 22153951. The next prime is 22153973. The reversal of 22153960 is 6935122.

It can be written as a sum of positive squares in 2 ways, for example, as 21958596 + 195364 = 4686^2 + 442^2 .

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, 276885 + ... + 276964.

Almost surely, 2^22153960 is an apocalyptic number.

22153960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22153960 is an abundant number, since it is smaller than the sum of its proper divisors (27692540).

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

22153960 is a wasteful number, since it uses less digits than its factorization.

22153960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553860 (or 553856 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 22153960 is about 4706.7993371292. The cubic root of 22153960 is about 280.8560535603.

The spelling of 22153960 in words is "twenty-two million, one hundred fifty-three thousand, nine hundred sixty".