22571980 has 12 divisors (see below), whose sum is σ = 47401200. Its totient is φ = 9028784.

The previous prime is 22571977. The next prime is 22571987. The reversal of 22571980 is 8917522.

It is a super-2 number, since 2×22571980² = 1018988562240800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22571987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 564280 + ... + 564319.

It is an arithmetic number, because the mean of its divisors is an integer number (3950100).

Almost surely, 2^22571980 is an apocalyptic number.

22571980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22571980 is an abundant number, since it is smaller than the sum of its proper divisors (24829220).

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

22571980 is a wasteful number, since it uses less digits than its factorization.

22571980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128608 (or 1128606 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 22571980 is about 4750.9977899384. The cubic root of 22571980 is about 282.6115360867.

The spelling of 22571980 in words is "twenty-two million, five hundred seventy-one thousand, nine hundred eighty".