398089404 has 42 divisors (see below), whose sum is σ = 1044514520. Its totient is φ = 132695496.

The previous prime is 398089381. The next prime is 398089421. The reversal of 398089404 is 404980893.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 398089404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 65344 + ... + 71175.

Almost surely, 2^398089404 is an apocalyptic number.

It is an amenable number.

398089404 is an abundant number, since it is smaller than the sum of its proper divisors (646425116).

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

398089404 is a wasteful number, since it uses less digits than its factorization.

398089404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136541 (or 136524 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 398089404 is about 19952.1779262315. The cubic root of 398089404 is about 735.6313109894.

The spelling of 398089404 in words is "three hundred ninety-eight million, eighty-nine thousand, four hundred four".