22813488 has 100 divisors (see below), whose sum is σ = 68418240. Its totient is φ = 7330176.

The previous prime is 22813487. The next prime is 22813499. The reversal of 22813488 is 88431822.

It is a happy number.

It is a super-2 number, since 2×22813488² = 1040910469452288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (22813481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 37281 + ... + 37887.

Almost surely, 2^22813488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22813488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34209120).

22813488 is an abundant number, since it is smaller than the sum of its proper divisors (45604752).

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

22813488 is a wasteful number, since it uses less digits than its factorization.

22813488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656 (or 641 counting only the distinct ones).

The product of its digits is 24576, while the sum is 36.

The square root of 22813488 is about 4776.3467210830. The cubic root of 22813488 is about 283.6158928206.

The spelling of 22813488 in words is "twenty-two million, eight hundred thirteen thousand, four hundred eighty-eight".