398132408 has 16 divisors (see below), whose sum is σ = 755493480. Its totient is φ = 196667488.

The previous prime is 398132407. The next prime is 398132417. The reversal of 398132408 is 804231893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398132407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299135 + ... + 300462.

Almost surely, 2^398132408 is an apocalyptic number.

It is an amenable number.

398132408 is a deficient number, since it is larger than the sum of its proper divisors (357361072).

398132408 is a wasteful number, since it uses less digits than its factorization.

398132408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599686 (or 599682 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 398132408 is about 19953.2555739659. The cubic root of 398132408 is about 735.6577991346.

The spelling of 398132408 in words is "three hundred ninety-eight million, one hundred thirty-two thousand, four hundred eight".