123426664 has 16 divisors (see below), whose sum is σ = 245038500. Its totient is φ = 58083072.

The previous prime is 123426631. The next prime is 123426673. The reversal of 123426664 is 466624321.

It can be written as a sum of positive squares in 2 ways, for example, as 120077764 + 3348900 = 10958^2 + 1830^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

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, 453639 + ... + 453910.

Almost surely, 2^123426664 is an apocalyptic number.

It is an amenable number.

123426664 is a deficient number, since it is larger than the sum of its proper divisors (121611836).

123426664 is a wasteful number, since it uses less digits than its factorization.

123426664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907572 (or 907568 counting only the distinct ones).

The product of its digits is 41472, while the sum is 34.

The square root of 123426664 is about 11109.7553528419. The cubic root of 123426664 is about 497.8933552279.

The spelling of 123426664 in words is "one hundred twenty-three million, four hundred twenty-six thousand, six hundred sixty-four".