123423994 has 8 divisors (see below), whose sum is σ = 185240160. Its totient is φ = 61677276.

The previous prime is 123423967. The next prime is 123424013. The reversal of 123423994 is 499324321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12664 + ... + 20179.

It is an arithmetic number, because the mean of its divisors is an integer number (23155020).

Almost surely, 2^123423994 is an apocalyptic number.

123423994 is a deficient number, since it is larger than the sum of its proper divisors (61816166).

123423994 is a wasteful number, since it uses less digits than its factorization.

123423994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34724.

The product of its digits is 46656, while the sum is 37.

The square root of 123423994 is about 11109.6351875298. The cubic root of 123423994 is about 497.8897650127.

The spelling of 123423994 in words is "one hundred twenty-three million, four hundred twenty-three thousand, nine hundred ninety-four".