123318740 has 24 divisors (see below), whose sum is σ = 272600160. Its totient is φ = 46731168.

The previous prime is 123318733. The next prime is 123318749. The reversal of 123318740 is 47813321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123318749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161882 + ... + 162641.

It is an arithmetic number, because the mean of its divisors is an integer number (11358340).

Almost surely, 2^123318740 is an apocalyptic number.

123318740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123318740 is an abundant number, since it is smaller than the sum of its proper divisors (149281420).

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

123318740 is a wasteful number, since it uses less digits than its factorization.

123318740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324551 (or 324549 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 123318740 is about 11104.8971179386. The cubic root of 123318740 is about 497.7481939632.

The spelling of 123318740 in words is "one hundred twenty-three million, three hundred eighteen thousand, seven hundred forty".