22947648 has 56 divisors (see below), whose sum is σ = 61337952. Its totient is φ = 7570944.

The previous prime is 22947647. The next prime is 22947653. The reversal of 22947648 is 84674922.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22947641) 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 7 ways as a sum of consecutive naturals, for example, 19986 + ... + 21102.

Almost surely, 2^22947648 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 22947648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30668976).

22947648 is an abundant number, since it is smaller than the sum of its proper divisors (38390304).

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

22947648 is a wasteful number, since it uses less digits than its factorization.

22947648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1239 (or 1229 counting only the distinct ones).

The product of its digits is 193536, while the sum is 42.

The square root of 22947648 is about 4790.3703405895. The cubic root of 22947648 is about 284.1707628725.

The spelling of 22947648 in words is "twenty-two million, nine hundred forty-seven thousand, six hundred forty-eight".