399103124 has 48 divisors (see below), whose sum is σ = 821162496. Its totient is φ = 166168800.

The previous prime is 399103099. The next prime is 399103129. The reversal of 399103124 is 421301993.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399103129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253259 + ... + 254829.

It is an arithmetic number, because the mean of its divisors is an integer number (17107552).

Almost surely, 2^399103124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 399103124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (410581248).

399103124 is an abundant number, since it is smaller than the sum of its proper divisors (422059372).

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

399103124 is a wasteful number, since it uses less digits than its factorization.

399103124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836 (or 1834 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 399103124 is about 19977.5655173497. The cubic root of 399103124 is about 736.2552010609.

It can be divided in two parts, 39910 and 3124, that added together give a palindrome (43034).

The spelling of 399103124 in words is "three hundred ninety-nine million, one hundred three thousand, one hundred twenty-four".