22947712 has 32 divisors (see below), whose sum is σ = 46481400. Its totient is φ = 11281920.

The previous prime is 22947707. The next prime is 22947713. The reversal of 22947712 is 21774922.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22947713) 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 3 ways as a sum of consecutive naturals, for example, 6339 + ... + 9277.

Almost surely, 2^22947712 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 22947712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23240700).

22947712 is an abundant number, since it is smaller than the sum of its proper divisors (23533688).

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

22947712 is an equidigital number, since it uses as much as digits as its factorization.

22947712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3014 (or 3002 counting only the distinct ones).

The product of its digits is 14112, while the sum is 34.

The square root of 22947712 is about 4790.3770206530. The cubic root of 22947712 is about 284.1710270523.

The spelling of 22947712 in words is "twenty-two million, nine hundred forty-seven thousand, seven hundred twelve".