22355316 has 18 divisors (see below), whose sum is σ = 56509362. Its totient is φ = 7451760.

The previous prime is 22355297. The next prime is 22355321. The reversal of 22355316 is 61355322.

It can be written as a sum of positive squares in only one way, i.e., 21123216 + 1232100 = 4596^2 + 1110^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 22355316.

It is a congruent 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 5 ways as a sum of consecutive naturals, for example, 310455 + ... + 310526.

It is an arithmetic number, because the mean of its divisors is an integer number (3139409).

Almost surely, 2^22355316 is an apocalyptic number.

It is an amenable number.

22355316 is an abundant number, since it is smaller than the sum of its proper divisors (34154046).

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

22355316 is a wasteful number, since it uses less digits than its factorization.

22355316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620991 (or 620986 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 22355316 is about 4728.1408608458. The cubic root of 22355316 is about 281.7043831399.

The spelling of 22355316 in words is "twenty-two million, three hundred fifty-five thousand, three hundred sixteen".