123623994 has 32 divisors (see below), whose sum is σ = 280284480. Its totient is φ = 36035712.

The previous prime is 123623957. The next prime is 123624041. The reversal of 123623994 is 499326321.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40227 + ... + 43190.

It is an arithmetic number, because the mean of its divisors is an integer number (8758890).

Almost surely, 2^123623994 is an apocalyptic number.

123623994 is an abundant number, since it is smaller than the sum of its proper divisors (156660486).

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

123623994 is a wasteful number, since it uses less digits than its factorization.

123623994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83454.

The product of its digits is 69984, while the sum is 39.

The square root of 123623994 is about 11118.6327396852. The cubic root of 123623994 is about 498.1585517960.

The spelling of 123623994 in words is "one hundred twenty-three million, six hundred twenty-three thousand, nine hundred ninety-four".