22960581 has 32 divisors (see below), whose sum is σ = 36630528. Its totient is φ = 12519360.

The previous prime is 22960577. The next prime is 22960603. The reversal of 22960581 is 18506922.

It is not a de Polignac number, because 22960581 - 2² = 22960577 is a prime.

It is a super-2 number, since 2×22960581² = 1054376559715122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22960541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42171 + ... + 42711.

It is an arithmetic number, because the mean of its divisors is an integer number (1144704).

Almost surely, 2^22960581 is an apocalyptic number.

22960581 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22960581 is a deficient number, since it is larger than the sum of its proper divisors (13669947).

22960581 is a wasteful number, since it uses less digits than its factorization.

22960581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 22960581 is about 4791.7200460795. The cubic root of 22960581 is about 284.2241378453.

The spelling of 22960581 in words is "twenty-two million, nine hundred sixty thousand, five hundred eighty-one".