22213938 has 8 divisors (see below), whose sum is σ = 44427888. Its totient is φ = 7404644.

The previous prime is 22213927. The next prime is 22213967. The reversal of 22213938 is 83931222.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

22213938 is an admirable 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 3 ways as a sum of consecutive naturals, for example, 1851156 + ... + 1851167.

It is an arithmetic number, because the mean of its divisors is an integer number (5553486).

Almost surely, 2^22213938 is an apocalyptic number.

22213938 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22213938 is a wasteful number, since it uses less digits than its factorization.

22213938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3702328.

The product of its digits is 5184, while the sum is 30.

The square root of 22213938 is about 4713.1664515483. The cubic root of 22213938 is about 281.1092815070.

The spelling of 22213938 in words is "twenty-two million, two hundred thirteen thousand, nine hundred thirty-eight".