398328876 has 72 divisors (see below), whose sum is σ = 1100736000. Its totient is φ = 120451680.

The previous prime is 398328871. The next prime is 398328893. The reversal of 398328876 is 678823893.

It is not an unprimeable number, because it can be changed into a prime (398328871) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 284025 + ... + 285423.

It is an arithmetic number, because the mean of its divisors is an integer number (15288000).

Almost surely, 2^398328876 is an apocalyptic number.

398328876 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 398328876, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (550368000).

398328876 is an abundant number, since it is smaller than the sum of its proper divisors (702407124).

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

398328876 is a wasteful number, since it uses less digits than its factorization.

398328876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2139 (or 2134 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 398328876 is about 19958.1781733704. The cubic root of 398328876 is about 735.7787885723.

The spelling of 398328876 in words is "three hundred ninety-eight million, three hundred twenty-eight thousand, eight hundred seventy-six".