397328 has 20 divisors (see below), whose sum is σ = 810960. Its totient is φ = 188064.

The previous prime is 397303. The next prime is 397337. The reversal of 397328 is 823793.

It is a junction number, because it is equal to n+sod(n) for n = 397294 and 397303.

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, 350 + ... + 957.

It is an arithmetic number, because the mean of its divisors is an integer number (40548).

2³⁹⁷³²⁸ is an apocalyptic number.

397328 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

397328 is an abundant number, since it is smaller than the sum of its proper divisors (413632).

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

397328 is a wasteful number, since it uses less digits than its factorization.

397328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334 (or 1328 counting only the distinct ones).

The product of its digits is 9072, while the sum is 32.

The square root of 397328 is about 630.3395910142. The cubic root of 397328 is about 73.5162010965.

The spelling of 397328 in words is "three hundred ninety-seven thousand, three hundred twenty-eight".