398530488 has 32 divisors (see below), whose sum is σ = 1005644160. Its totient is φ = 131601120.

The previous prime is 398530481. The next prime is 398530501. The reversal of 398530488 is 884035893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398530481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75028 + ... + 80163.

It is an arithmetic number, because the mean of its divisors is an integer number (31426380).

Almost surely, 2^398530488 is an apocalyptic number.

It is an amenable number.

398530488 is an abundant number, since it is smaller than the sum of its proper divisors (607113672).

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

398530488 is a wasteful number, since it uses less digits than its factorization.

398530488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155307 (or 155303 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 48.

The square root of 398530488 is about 19963.2283962289. The cubic root of 398530488 is about 735.9029044488.

The spelling of 398530488 in words is "three hundred ninety-eight million, five hundred thirty thousand, four hundred eighty-eight".