398798384 has 40 divisors (see below), whose sum is σ = 814614528. Its totient is φ = 188850240.

The previous prime is 398798371. The next prime is 398798423. The reversal of 398798384 is 483897893.

It is a super-2 number, since 2×398798384² = 318080302162022912, which contains 22 as substring.

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, 14759 + ... + 31865.

Almost surely, 2^398798384 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 398798384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (407307264).

398798384 is an abundant number, since it is smaller than the sum of its proper divisors (415816144).

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

398798384 is a wasteful number, since it uses less digits than its factorization.

398798384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17193 (or 17187 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 59.

The square root of 398798384 is about 19969.9370054089. The cubic root of 398798384 is about 736.0677611683.

The spelling of 398798384 in words is "three hundred ninety-eight million, seven hundred ninety-eight thousand, three hundred eighty-four".