398626368 has 112 divisors (see below), whose sum is σ = 1230172800. Its totient is φ = 113874432.

The previous prime is 398626357. The next prime is 398626379. The reversal of 398626368 is 863626893.

It is an interprime number because it is at equal distance from previous prime (398626357) and next prime (398626379).

It is a tau number, because it is divible by the number of its divisors (112).

It is a self number, because there is not a number n which added to its sum of digits gives 398626368.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62830 + ... + 68882.

Almost surely, 2^398626368 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 398626368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (615086400).

398626368 is an abundant number, since it is smaller than the sum of its proper divisors (831546432).

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

398626368 is an equidigital number, since it uses as much as digits as its factorization.

398626368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6089 (or 6065 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 51.

The square root of 398626368 is about 19965.6296670052. The cubic root of 398626368 is about 735.9619151686.

The spelling of 398626368 in words is "three hundred ninety-eight million, six hundred twenty-six thousand, three hundred sixty-eight".