398328572 has 24 divisors (see below), whose sum is σ = 736464960. Its totient is φ = 188202560.

The previous prime is 398328551. The next prime is 398328577. The reversal of 398328572 is 275823893.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398328577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31079 + ... + 41982.

It is an arithmetic number, because the mean of its divisors is an integer number (30686040).

Almost surely, 2^398328572 is an apocalyptic number.

It is an amenable number.

398328572 is a deficient number, since it is larger than the sum of its proper divisors (338136388).

398328572 is a wasteful number, since it uses less digits than its factorization.

398328572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73141 (or 73139 counting only the distinct ones).

The product of its digits is 725760, while the sum is 47.

The square root of 398328572 is about 19958.1705574434. The cubic root of 398328572 is about 735.7786013930.

The spelling of 398328572 in words is "three hundred ninety-eight million, three hundred twenty-eight thousand, five hundred seventy-two".