22400612 has 24 divisors (see below), whose sum is σ = 42483000. Its totient is φ = 10334688.

The previous prime is 22400593. The next prime is 22400617. The reversal of 22400612 is 21600422.

It can be written as a sum of positive squares in 4 ways, for example, as 2383936 + 20016676 = 1544^2 + 4474^2 .

It is not an unprimeable number, because it can be changed into a prime (22400617) 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 7 ways as a sum of consecutive naturals, for example, 7514 + ... + 10062.

It is an arithmetic number, because the mean of its divisors is an integer number (1770125).

Almost surely, 2^22400612 is an apocalyptic number.

It is an amenable number.

22400612 is a deficient number, since it is larger than the sum of its proper divisors (20082388).

22400612 is a wasteful number, since it uses less digits than its factorization.

22400612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2592 (or 2564 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 22400612 is about 4732.9284803386. The cubic root of 22400612 is about 281.8945164895.

The spelling of 22400612 in words is "twenty-two million, four hundred thousand, six hundred twelve".