22961980 has 12 divisors (see below), whose sum is σ = 48220200. Its totient is φ = 9184784.

The previous prime is 22961977. The next prime is 22961989. The reversal of 22961980 is 8916922.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22961989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 574030 + ... + 574069.

It is an arithmetic number, because the mean of its divisors is an integer number (4018350).

Almost surely, 2^22961980 is an apocalyptic number.

22961980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22961980 is an abundant number, since it is smaller than the sum of its proper divisors (25258220).

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

22961980 is a wasteful number, since it uses less digits than its factorization.

22961980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148108 (or 1148106 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 22961980 is about 4791.8660248383. The cubic root of 22961980 is about 284.2299103690.

The spelling of 22961980 in words is "twenty-two million, nine hundred sixty-one thousand, nine hundred eighty".