123424208 has 20 divisors (see below), whose sum is σ = 239787108. Its totient is φ = 61543680.

The previous prime is 123424181. The next prime is 123424211. The reversal of 123424208 is 802424321.

It can be written as a sum of positive squares in 2 ways, for example, as 35664784 + 87759424 = 5972^2 + 9368^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4373 + ... + 16308.

Almost surely, 2^123424208 is an apocalyptic number.

It is an amenable number.

123424208 is a deficient number, since it is larger than the sum of its proper divisors (116362900).

123424208 is a wasteful number, since it uses less digits than its factorization.

123424208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21062 (or 21056 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 123424208 is about 11109.6448188050. The cubic root of 123424208 is about 497.8900527697.

Adding to 123424208 its reverse (802424321), we get a palindrome (925848529).

The spelling of 123424208 in words is "one hundred twenty-three million, four hundred twenty-four thousand, two hundred eight".