22378944 has 56 divisors (see below), whose sum is σ = 67673728. Its totient is φ = 6393600.

The previous prime is 22378921. The next prime is 22378957. The reversal of 22378944 is 44987322.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6982 + ... + 9669.

Almost surely, 2^22378944 is an apocalyptic number.

22378944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22378944 is an abundant number, since it is smaller than the sum of its proper divisors (45294784).

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

22378944 is a wasteful number, since it uses less digits than its factorization.

22378944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16673 (or 16663 counting only the distinct ones).

The product of its digits is 96768, while the sum is 39.

The square root of 22378944 is about 4730.6388574906. The cubic root of 22378944 is about 281.8035954485.

The spelling of 22378944 in words is "twenty-two million, three hundred seventy-eight thousand, nine hundred forty-four".