398136 has 32 divisors (see below), whose sum is σ = 1017360. Its totient is φ = 129792.

The previous prime is 398129. The next prime is 398143. The reversal of 398136 is 631893.

It is an interprime number because it is at equal distance from previous prime (398129) and next prime (398143).

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, 1116 + ... + 1428.

2³⁹⁸¹³⁶ 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 398136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (508680).

398136 is an abundant number, since it is smaller than the sum of its proper divisors (619224).

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

398136 is a wasteful number, since it uses less digits than its factorization.

398136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375 (or 371 counting only the distinct ones).

The product of its digits is 3888, while the sum is 30.

The square root of 398136 is about 630.9801898634. The cubic root of 398136 is about 73.5660011527.

The spelling of 398136 in words is "three hundred ninety-eight thousand, one hundred thirty-six".