22497700 has 18 divisors (see below), whose sum is σ = 48820226. Its totient is φ = 8999040.

The previous prime is 22497697. The next prime is 22497701. The reversal of 22497700 is 779422.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 5654884 + 16842816 = 2378^2 + 4104^2 .

It is a super-2 number, since 2×22497700² = 1012293010580000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22497701) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 112389 + ... + 112588.

Almost surely, 2^22497700 is an apocalyptic number.

22497700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22497700 is an abundant number, since it is smaller than the sum of its proper divisors (26322526).

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

22497700 is a wasteful number, since it uses less digits than its factorization.

22497700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224991 (or 224984 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 22497700 is about 4743.1740427693. The cubic root of 22497700 is about 282.3011888571.

The spelling of 22497700 in words is "twenty-two million, four hundred ninety-seven thousand, seven hundred".