398329316 has 24 divisors (see below), whose sum is σ = 869082816. Its totient is φ = 155193120.

The previous prime is 398329313. The next prime is 398329331. The reversal of 398329316 is 613923893.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (398329313) 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, 646331 + ... + 646946.

It is an arithmetic number, because the mean of its divisors is an integer number (36211784).

Almost surely, 2^398329316 is an apocalyptic number.

It is an amenable number.

398329316 is an abundant number, since it is smaller than the sum of its proper divisors (470753500).

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

398329316 is a wasteful number, since it uses less digits than its factorization.

398329316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293299 (or 1293297 counting only the distinct ones).

The product of its digits is 209952, while the sum is 44.

The square root of 398329316 is about 19958.1891964176. The cubic root of 398329316 is about 735.7790594896.

The spelling of 398329316 in words is "three hundred ninety-eight million, three hundred twenty-nine thousand, three hundred sixteen".