123290464 has 24 divisors (see below), whose sum is σ = 264795048. Its totient is φ = 56040960.

The previous prime is 123290437. The next prime is 123290483. The reversal of 123290464 is 464092321.

It is a happy number.

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, 174777 + ... + 175480.

It is an arithmetic number, because the mean of its divisors is an integer number (11033127).

Almost surely, 2^123290464 is an apocalyptic number.

It is an amenable number.

123290464 is an abundant number, since it is smaller than the sum of its proper divisors (141504584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123290464 is a wasteful number, since it uses less digits than its factorization.

123290464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350278 (or 350270 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 123290464 is about 11103.6239129394. The cubic root of 123290464 is about 497.7101478296.

The spelling of 123290464 in words is "one hundred twenty-three million, two hundred ninety thousand, four hundred sixty-four".