22454312 has 8 divisors (see below), whose sum is σ = 42101850. Its totient is φ = 11227152.

The previous prime is 22454293. The next prime is 22454329. The reversal of 22454312 is 21345422.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 19307236 + 3147076 = 4394^2 + 1774^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×22454312² = 1008392254786688, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1403387 + ... + 1403402.

Almost surely, 2^22454312 is an apocalyptic number.

It is an amenable number.

22454312 is a deficient number, since it is larger than the sum of its proper divisors (19647538).

22454312 is a wasteful number, since it uses less digits than its factorization.

22454312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2806795 (or 2806791 counting only the distinct ones).

The product of its digits is 1920, while the sum is 23.

The square root of 22454312 is about 4738.5981049251. The cubic root of 22454312 is about 282.1195944959.

Adding to 22454312 its reverse (21345422), we get a palindrome (43799734).

The spelling of 22454312 in words is "twenty-two million, four hundred fifty-four thousand, three hundred twelve".