398850056 has 48 divisors (see below), whose sum is σ = 866697840. Its totient is φ = 170620160.

The previous prime is 398850043. The next prime is 398850103. The reversal of 398850056 is 650058893.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 398849989 and 398850016.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17591 + ... + 33273.

It is an arithmetic number, because the mean of its divisors is an integer number (18056205).

Almost surely, 2^398850056 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 398850056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (433348920).

398850056 is an abundant number, since it is smaller than the sum of its proper divisors (467847784).

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

398850056 is a wasteful number, since it uses less digits than its factorization.

398850056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15734 (or 15713 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 398850056 is about 19971.2307081962. The cubic root of 398850056 is about 736.0995503733.

The spelling of 398850056 in words is "three hundred ninety-eight million, eight hundred fifty thousand, fifty-six".