22261580 has 36 divisors (see below), whose sum is σ = 51391200. Its totient is φ = 8094240.

The previous prime is 22261579. The next prime is 22261637. The reversal of 22261580 is 8516222.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2180 + ... + 7019.

Almost surely, 2^22261580 is an apocalyptic number.

22261580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22261580 is an abundant number, since it is smaller than the sum of its proper divisors (29129620).

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

22261580 is a wasteful number, since it uses less digits than its factorization.

22261580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9230 (or 9217 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 22261580 is about 4718.2178839049. The cubic root of 22261580 is about 281.3101020526.

The spelling of 22261580 in words is "twenty-two million, two hundred sixty-one thousand, five hundred eighty".