22266580 has 36 divisors (see below), whose sum is σ = 54396468. Its totient is φ = 7633920.

The previous prime is 22266571. The next prime is 22266623. The reversal of 22266580 is 8566222.

It can be written as a sum of positive squares in 2 ways, for example, as 8398404 + 13868176 = 2898^2 + 3724^2 .

It is a congruent number.

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, 10381 + ... + 12340.

It is an arithmetic number, because the mean of its divisors is an integer number (1511013).

Almost surely, 2^22266580 is an apocalyptic number.

22266580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22266580 is an abundant number, since it is smaller than the sum of its proper divisors (32129888).

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

22266580 is a wasteful number, since it uses less digits than its factorization.

22266580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22744 (or 22735 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 22266580 is about 4718.7477152312. The cubic root of 22266580 is about 281.3311614326.

The spelling of 22266580 in words is "twenty-two million, two hundred sixty-six thousand, five hundred eighty".