398902350 has 96 divisors (see below), whose sum is σ = 1233421056. Its totient is φ = 82886400.

The previous prime is 398902289. The next prime is 398902351. The reversal of 398902350 is 53209893.

It is a junction number, because it is equal to n+sod(n) for n = 398902299 and 398902308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398902351) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5719 + ... + 28818.

It is an arithmetic number, because the mean of its divisors is an integer number (12848136).

Almost surely, 2^398902350 is an apocalyptic number.

398902350 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 398902350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (616710528).

398902350 is an abundant number, since it is smaller than the sum of its proper divisors (834518706).

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

398902350 is a wasteful number, since it uses less digits than its factorization.

398902350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34570 (or 34565 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 398902350 is about 19972.5398985707. The cubic root of 398902350 is about 736.1317194447.

The spelling of 398902350 in words is "three hundred ninety-eight million, nine hundred two thousand, three hundred fifty".