123224644 has 12 divisors (see below), whose sum is σ = 215747644. Its totient is φ = 61582464.

The previous prime is 123224641. The next prime is 123224663. The reversal of 123224644 is 446422321.

It can be written as a sum of positive squares in 2 ways, for example, as 96825600 + 26399044 = 9840^2 + 5138^2 .

It is not an unprimeable number, because it can be changed into a prime (123224641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3664 + ... + 16120.

Almost surely, 2^123224644 is an apocalyptic number.

It is an amenable number.

123224644 is a deficient number, since it is larger than the sum of its proper divisors (92523000).

123224644 is a wasteful number, since it uses less digits than its factorization.

123224644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14934 (or 14932 counting only the distinct ones).

The product of its digits is 9216, while the sum is 28.

The square root of 123224644 is about 11100.6596200406. The cubic root of 123224644 is about 497.6215626781.

Adding to 123224644 its reverse (446422321), we get a palindrome (569646965).

The spelling of 123224644 in words is "one hundred twenty-three million, two hundred twenty-four thousand, six hundred forty-four".