22732668 has 90 divisors (see below), whose sum is σ = 67291224. Its totient is φ = 6470352.

The previous prime is 22732663. The next prime is 22732691. The reversal of 22732668 is 86623722.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22732663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 86305 + ... + 86567.

Almost surely, 2^22732668 is an apocalyptic number.

22732668 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 22732668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33645612).

22732668 is an abundant number, since it is smaller than the sum of its proper divisors (44558556).

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

22732668 is a wasteful number, since it uses less digits than its factorization.

22732668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301 (or 275 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 22732668 is about 4767.8787736267. The cubic root of 22732668 is about 283.2805801056.

The spelling of 22732668 in words is "twenty-two million, seven hundred thirty-two thousand, six hundred sixty-eight".