22351338 has 12 divisors (see below), whose sum is σ = 48427938. Its totient is φ = 7450440.

The previous prime is 22351333. The next prime is 22351349. The reversal of 22351338 is 83315322.

It can be written as a sum of positive squares in only one way, i.e., 16136289 + 6215049 = 4017^2 + 2493^2 .

It is not an unprimeable number, because it can be changed into a prime (22351333) by changing a digit.

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, 620853 + ... + 620888.

Almost surely, 2^22351338 is an apocalyptic number.

22351338 is an abundant number, since it is smaller than the sum of its proper divisors (26076600).

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

22351338 is a wasteful number, since it uses less digits than its factorization.

22351338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241749 (or 1241746 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 22351338 is about 4727.7201693840. The cubic root of 22351338 is about 281.6876729234.

The spelling of 22351338 in words is "twenty-two million, three hundred fifty-one thousand, three hundred thirty-eight".