22249356 has 12 divisors (see below), whose sum is σ = 51915192. Its totient is φ = 7416448.

The previous prime is 22249343. The next prime is 22249363. The reversal of 22249356 is 65394222.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 927045 + ... + 927068.

It is an arithmetic number, because the mean of its divisors is an integer number (4326266).

Almost surely, 2^22249356 is an apocalyptic number.

It is an amenable number.

22249356 is an abundant number, since it is smaller than the sum of its proper divisors (29665836).

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

22249356 is a wasteful number, since it uses less digits than its factorization.

22249356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1854120 (or 1854118 counting only the distinct ones).

The product of its digits is 25920, while the sum is 33.

The square root of 22249356 is about 4716.9223016709. The cubic root of 22249356 is about 281.2586027986.

The spelling of 22249356 in words is "twenty-two million, two hundred forty-nine thousand, three hundred fifty-six".