22613000 has 32 divisors (see below), whose sum is σ = 52916760. Its totient is φ = 9044800.

The previous prime is 22612999. The next prime is 22613023. The reversal of 22613000 is 31622.

It can be written as a sum of positive squares in 4 ways, for example, as 5982916 + 16630084 = 2446^2 + 4078^2 .

It is a super-2 number, since 2×22613000² = 1022695538000000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10307 + ... + 12306.

Almost surely, 2^22613000 is an apocalyptic number.

22613000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22613000 is an abundant number, since it is smaller than the sum of its proper divisors (30303760).

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

22613000 is a wasteful number, since it uses less digits than its factorization.

22613000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22634 (or 22620 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 22613000 is about 4755.3128183117. The cubic root of 22613000 is about 282.7826288872.

Adding to 22613000 its reverse (31622), we get a palindrome (22644622).

The spelling of 22613000 in words is "twenty-two million, six hundred thirteen thousand".