398945488 has 40 divisors (see below), whose sum is σ = 810805248. Its totient is φ = 189796992.

The previous prime is 398945467. The next prime is 398945501. The reversal of 398945488 is 884549893.

It is a congruent number.

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, 69745 + ... + 75247.

Almost surely, 2^398945488 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 398945488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (405402624).

398945488 is an abundant number, since it is smaller than the sum of its proper divisors (411859760).

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

398945488 is a wasteful number, since it uses less digits than its factorization.

398945488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5731 (or 5725 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 58.

The square root of 398945488 is about 19973.6198021290. The cubic root of 398945488 is about 736.1582540134.

The spelling of 398945488 in words is "three hundred ninety-eight million, nine hundred forty-five thousand, four hundred eighty-eight".