398170344 has 192 divisors, whose sum is σ = 1206576000. Its totient is φ = 108725760.

The previous prime is 398170337. The next prime is 398170373. The reversal of 398170344 is 443071893.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 2000757 + ... + 2000955.

It is an arithmetic number, because the mean of its divisors is an integer number (6284250).

Almost surely, 2^398170344 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 398170344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (603288000).

398170344 is an abundant number, since it is smaller than the sum of its proper divisors (808405656).

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

398170344 is a wasteful number, since it uses less digits than its factorization.

398170344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 398170344 is about 19954.2061731355. The cubic root of 398170344 is about 735.6811640817.

The spelling of 398170344 in words is "three hundred ninety-eight million, one hundred seventy thousand, three hundred forty-four".