22056396 has 12 divisors (see below), whose sum is σ = 51464952. Its totient is φ = 7352128.

The previous prime is 22056371. The next prime is 22056409. The reversal of 22056396 is 69365022.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

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, 919005 + ... + 919028.

It is an arithmetic number, because the mean of its divisors is an integer number (4288746).

Almost surely, 2^22056396 is an apocalyptic number.

It is an amenable number.

22056396 is an abundant number, since it is smaller than the sum of its proper divisors (29408556).

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

22056396 is a wasteful number, since it uses less digits than its factorization.

22056396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1838040 (or 1838038 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 22056396 is about 4696.4237457879. The cubic root of 22056396 is about 280.4431587824.

It can be divided in two parts, 220 and 56396, that added together give a triangular number (56616 = T₃₃₆).

The spelling of 22056396 in words is "twenty-two million, fifty-six thousand, three hundred ninety-six".