123424392 has 128 divisors (see below), whose sum is σ = 392232960. Its totient is φ = 31484160.

The previous prime is 123424373. The next prime is 123424429. The reversal of 123424392 is 293424321.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66793 + ... + 68615.

It is an arithmetic number, because the mean of its divisors is an integer number (3064320).

Almost surely, 2^123424392 is an apocalyptic number.

123424392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123424392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196116480).

123424392 is an abundant number, since it is smaller than the sum of its proper divisors (268808568).

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

123424392 is a wasteful number, since it uses less digits than its factorization.

123424392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1883 (or 1879 counting only the distinct ones).

The product of its digits is 10368, while the sum is 30.

The square root of 123424392 is about 11109.6530998947. The cubic root of 123424392 is about 497.8903001866.

The spelling of 123424392 in words is "one hundred twenty-three million, four hundred twenty-four thousand, three hundred ninety-two".