398156 has 12 divisors (see below), whose sum is σ = 760200. Its totient is φ = 180960.

The previous prime is 398149. The next prime is 398171. The reversal of 398156 is 651893.

398156 is nontrivially palindromic in base 14.

398156 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 398156.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4481 + ... + 4568.

It is an arithmetic number, because the mean of its divisors is an integer number (63350).

2³⁹⁸¹⁵⁶ is an apocalyptic number.

It is an amenable number.

398156 is a deficient number, since it is larger than the sum of its proper divisors (362044).

398156 is a wasteful number, since it uses less digits than its factorization.

398156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9064 (or 9062 counting only the distinct ones).

The product of its digits is 6480, while the sum is 32.

The square root of 398156 is about 630.9960380224. The cubic root of 398156 is about 73.5672329724.

The spelling of 398156 in words is "three hundred ninety-eight thousand, one hundred fifty-six".