397304208 has 120 divisors (see below), whose sum is σ = 1326069888. Its totient is φ = 108573696.

The previous prime is 397304197. The next prime is 397304233. The reversal of 397304208 is 802403793.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14616 + ... + 31752.

Almost surely, 2^397304208 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 397304208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (663034944).

397304208 is an abundant number, since it is smaller than the sum of its proper divisors (928765680).

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

397304208 is a wasteful number, since it uses less digits than its factorization.

397304208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17181 (or 17172 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 397304208 is about 19932.4912642650. The cubic root of 397304208 is about 735.1473368383.

The spelling of 397304208 in words is "three hundred ninety-seven million, three hundred four thousand, two hundred eight".