398582225 has 12 divisors (see below), whose sum is σ = 496034844. Its totient is φ = 317709120.

The previous prime is 398582189. The next prime is 398582281. The reversal of 398582225 is 522285893.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 98565184 + 300017041 = 9928^2 + 17321^2 .

It is not a de Polignac number, because 398582225 - 2⁶ = 398582161 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21854 + ... + 35703.

It is an arithmetic number, because the mean of its divisors is an integer number (41336237).

Almost surely, 2^398582225 is an apocalyptic number.

It is an amenable number.

398582225 is a deficient number, since it is larger than the sum of its proper divisors (97452619).

398582225 is a wasteful number, since it uses less digits than its factorization.

398582225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57844 (or 57839 counting only the distinct ones).

The product of its digits is 345600, while the sum is 44.

The square root of 398582225 is about 19964.5241616223. The cubic root of 398582225 is about 735.9347479023.

The spelling of 398582225 in words is "three hundred ninety-eight million, five hundred eighty-two thousand, two hundred twenty-five".