398352925 has 24 divisors (see below), whose sum is σ = 535793832. Its totient is φ = 292608000.

The previous prime is 398352923. The next prime is 398352931. The reversal of 398352925 is 529253893.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 61042969 + 337309956 = 7813^2 + 18366^2 .

It is not a de Polignac number, because 398352925 - 2¹ = 398352923 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398352923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5995 + ... + 28855.

It is an arithmetic number, because the mean of its divisors is an integer number (22324743).

Almost surely, 2^398352925 is an apocalyptic number.

It is an amenable number.

398352925 is a deficient number, since it is larger than the sum of its proper divisors (137440907).

398352925 is a wasteful number, since it uses less digits than its factorization.

398352925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22929 (or 22924 counting only the distinct ones).

The product of its digits is 583200, while the sum is 46.

The square root of 398352925 is about 19958.7806491278. The cubic root of 398352925 is about 735.7935957573.

The spelling of 398352925 in words is "three hundred ninety-eight million, three hundred fifty-two thousand, nine hundred twenty-five".