398968219 has 8 divisors (see below), whose sum is σ = 429984800. Its totient is φ = 367998336.

The previous prime is 398968187. The next prime is 398968237. The reversal of 398968219 is 912869893.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 398968219 - 2⁵ = 398968187 is a prime.

It is a super-2 number, since 2×398968219² = 318351279544063922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 398968219.

It is not an unprimeable number, because it can be changed into a prime (398968819) 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, 7219 + ... + 29155.

It is an arithmetic number, because the mean of its divisors is an integer number (53748100).

Almost surely, 2^398968219 is an apocalyptic number.

398968219 is a deficient number, since it is larger than the sum of its proper divisors (31016581).

398968219 is a wasteful number, since it uses less digits than its factorization.

398968219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23349.

The product of its digits is 1679616, while the sum is 55.

The square root of 398968219 is about 19974.1888195741. The cubic root of 398968219 is about 736.1722352848.

The spelling of 398968219 in words is "three hundred ninety-eight million, nine hundred sixty-eight thousand, two hundred nineteen".