398063260 has 72 divisors (see below), whose sum is σ = 996229584. Its totient is φ = 133136640.

The previous prime is 398063249. The next prime is 398063273. The reversal of 398063260 is 62360893.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35227 + ... + 45133.

It is an arithmetic number, because the mean of its divisors is an integer number (13836522).

Almost surely, 2^398063260 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 398063260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (498114792).

398063260 is an abundant number, since it is smaller than the sum of its proper divisors (598166324).

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

398063260 is a wasteful number, since it uses less digits than its factorization.

398063260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9971 (or 9962 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 398063260 is about 19951.5227489032. The cubic root of 398063260 is about 735.6152067627.

The spelling of 398063260 in words is "three hundred ninety-eight million, sixty-three thousand, two hundred sixty".