22051080 has 48 divisors (see below), whose sum is σ = 71667180. Its totient is φ = 5880192.

The previous prime is 22051069. The next prime is 22051093. The reversal of 22051080 is 8015022.

It can be written as a sum of positive squares in 2 ways, for example, as 20196036 + 1855044 = 4494^2 + 1362^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 30267 + ... + 30986.

Almost surely, 2^22051080 is an apocalyptic number.

22051080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22051080 is an abundant number, since it is smaller than the sum of its proper divisors (49616100).

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

22051080 is a wasteful number, since it uses less digits than its factorization.

22051080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61270 (or 61263 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 22051080 is about 4695.8577491232. The cubic root of 22051080 is about 280.4206263067.

The spelling of 22051080 in words is "twenty-two million, fifty-one thousand, eighty".