22042372 has 36 divisors (see below), whose sum is σ = 44036496. Its totient is φ = 9573520.

The previous prime is 22042357. The next prime is 22042429. The reversal of 22042372 is 27324022.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22803 + ... + 23749.

It is an arithmetic number, because the mean of its divisors is an integer number (1223236).

Almost surely, 2^22042372 is an apocalyptic number.

22042372 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22042372 is a deficient number, since it is larger than the sum of its proper divisors (21994124).

22042372 is a wasteful number, since it uses less digits than its factorization.

22042372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008 (or 983 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 22042372 is about 4694.9304574189. The cubic root of 22042372 is about 280.3837086240.

Adding to 22042372 its reverse (27324022), we get a palindrome (49366394).

The spelling of 22042372 in words is "twenty-two million, forty-two thousand, three hundred seventy-two".