320400124 has 24 divisors (see below), whose sum is σ = 614589696. Its totient is φ = 144942000.

The previous prime is 320400109. The next prime is 320400133. The reversal of 320400124 is 421004023.

It is a junction number, because it is equal to n+sod(n) for n = 320400098 and 320400107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7972 + ... + 26539.

It is an arithmetic number, because the mean of its divisors is an integer number (25607904).

Almost surely, 2^320400124 is an apocalyptic number.

It is an amenable number.

320400124 is a deficient number, since it is larger than the sum of its proper divisors (294189572).

320400124 is a wasteful number, since it uses less digits than its factorization.

320400124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34737 (or 34735 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 320400124 is about 17899.7241319524. The cubic root of 320400124 is about 684.2753442711.

Adding to 320400124 its reverse (421004023), we get a palindrome (741404147).

The spelling of 320400124 in words is "three hundred twenty million, four hundred thousand, one hundred twenty-four".