398108032 has 64 divisors (see below), whose sum is σ = 928599840. Its totient is φ = 166440960.

The previous prime is 398107973. The next prime is 398108033. The reversal of 398108032 is 230801893.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398108033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31318 + ... + 42154.

Almost surely, 2^398108032 is an apocalyptic number.

398108032 is a gapful number since it is divisible by the number (32) 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 398108032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (464299920).

398108032 is an abundant number, since it is smaller than the sum of its proper divisors (530491808).

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

398108032 is a wasteful number, since it uses less digits than its factorization.

398108032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10899 (or 10887 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 398108032 is about 19952.6447369766. The cubic root of 398108032 is about 735.6427850672.

The spelling of 398108032 in words is "three hundred ninety-eight million, one hundred eight thousand, thirty-two".