22215392 has 48 divisors (see below), whose sum is σ = 46539360. Its totient is φ = 10418688.

The previous prime is 22215371. The next prime is 22215409. The reversal of 22215392 is 29351222.

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 7 ways as a sum of consecutive naturals, for example, 34013 + ... + 34659.

It is an arithmetic number, because the mean of its divisors is an integer number (969570).

Almost surely, 2^22215392 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 22215392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23269680).

22215392 is an abundant number, since it is smaller than the sum of its proper divisors (24323968).

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

22215392 is a wasteful number, since it uses less digits than its factorization.

22215392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723 (or 715 counting only the distinct ones).

The product of its digits is 2160, while the sum is 26.

The square root of 22215392 is about 4713.3206977671. The cubic root of 22215392 is about 281.1154146530.

The spelling of 22215392 in words is "twenty-two million, two hundred fifteen thousand, three hundred ninety-two".