22056538 has 8 divisors (see below), whose sum is σ = 37811232. Its totient is φ = 9452796.

The previous prime is 22056521. The next prime is 22056547. The reversal of 22056538 is 83565022.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 787720 + ... + 787747.

It is an arithmetic number, because the mean of its divisors is an integer number (4726404).

Almost surely, 2^22056538 is an apocalyptic number.

22056538 is a deficient number, since it is larger than the sum of its proper divisors (15754694).

22056538 is a wasteful number, since it uses less digits than its factorization.

22056538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575476.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 22056538 is about 4696.4388636498. The cubic root of 22056538 is about 280.4437606160.

The spelling of 22056538 in words is "twenty-two million, fifty-six thousand, five hundred thirty-eight".