22207968 has 72 divisors (see below), whose sum is σ = 65356200. Its totient is φ = 7144704.

The previous prime is 22207919. The next prime is 22207973. The reversal of 22207968 is 86970222.

It is a tau number, because it is divible by the number of its divisors (72).

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

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 7023 + ... + 9681.

It is an arithmetic number, because the mean of its divisors is an integer number (907725).

Almost surely, 2^22207968 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 22207968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32678100).

22207968 is an abundant number, since it is smaller than the sum of its proper divisors (43148232).

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

22207968 is a wasteful number, since it uses less digits than its factorization.

22207968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2704 (or 2693 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 22207968 is about 4712.5330768070. The cubic root of 22207968 is about 281.0840965266.

The spelling of 22207968 in words is "twenty-two million, two hundred seven thousand, nine hundred sixty-eight".