398393000 has 32 divisors (see below), whose sum is σ = 932241960. Its totient is φ = 159356800.

The previous prime is 398392963. The next prime is 398393053. The reversal of 398393000 is 393893.

It can be written as a sum of positive squares in 4 ways, for example, as 122899396 + 275493604 = 11086^2 + 16598^2 .

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, 198197 + ... + 200196.

Almost surely, 2^398393000 is an apocalyptic number.

It is an amenable number.

398393000 is an abundant number, since it is smaller than the sum of its proper divisors (533848960).

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

398393000 is a wasteful number, since it uses less digits than its factorization.

398393000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398414 (or 398400 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 398393000 is about 19959.7845679757. The cubic root of 398393000 is about 735.8182689702.

The spelling of 398393000 in words is "three hundred ninety-eight million, three hundred ninety-three thousand".