22630188 has 48 divisors (see below), whose sum is σ = 61263104. Its totient is φ = 6367680.

The previous prime is 22630187. The next prime is 22630189. The reversal of 22630188 is 88103622.

It is an interprime number because it is at equal distance from previous prime (22630187) and next prime (22630189).

It is a super-3 number, since 3×22630188³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (22630187) 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 15 ways as a sum of consecutive naturals, for example, 3618 + ... + 7638.

Almost surely, 2^22630188 is an apocalyptic number.

22630188 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22630188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30631552).

22630188 is an abundant number, since it is smaller than the sum of its proper divisors (38632916).

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

22630188 is a wasteful number, since it uses less digits than its factorization.

22630188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4102 (or 4100 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 22630188 is about 4757.1197168034. The cubic root of 22630188 is about 282.8542578451.

The spelling of 22630188 in words is "twenty-two million, six hundred thirty thousand, one hundred eighty-eight".