22156316 has 24 divisors (see below), whose sum is σ = 47722080. Its totient is φ = 8764992.

The previous prime is 22156307. The next prime is 22156333. The reversal of 22156316 is 61365122.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30071 + ... + 30798.

It is an arithmetic number, because the mean of its divisors is an integer number (1988420).

Almost surely, 2^22156316 is an apocalyptic number.

22156316 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

22156316 is an abundant number, since it is smaller than the sum of its proper divisors (25565764).

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

22156316 is a wasteful number, since it uses less digits than its factorization.

22156316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60893 (or 60891 counting only the distinct ones).

The product of its digits is 2160, while the sum is 26.

The square root of 22156316 is about 4707.0496067069. The cubic root of 22156316 is about 280.8660092433.

The spelling of 22156316 in words is "twenty-two million, one hundred fifty-six thousand, three hundred sixteen".