22381952 has 16 divisors (see below), whose sum is σ = 44589300. Its totient is φ = 11190912.

The previous prime is 22381949. The next prime is 22381963. The reversal of 22381952 is 25918322.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (16).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87302 + ... + 87557.

Almost surely, 2^22381952 is an apocalyptic number.

It is an amenable number.

22381952 is a deficient number, since it is larger than the sum of its proper divisors (22207348).

22381952 is an equidigital number, since it uses as much as digits as its factorization.

22381952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174873 (or 174861 counting only the distinct ones).

The product of its digits is 8640, while the sum is 32.

The square root of 22381952 is about 4730.9567742688. The cubic root of 22381952 is about 281.8162208169.

The spelling of 22381952 in words is "twenty-two million, three hundred eighty-one thousand, nine hundred fifty-two".