398460850 has 12 divisors (see below), whose sum is σ = 741137274. Its totient is φ = 159384320.

The previous prime is 398460817. The next prime is 398460863. The reversal of 398460850 is 58064893.

It can be written as a sum of positive squares in 3 ways, for example, as 319801689 + 78659161 = 17883^2 + 8869^2 .

It is a junction number, because it is equal to n+sod(n) for n = 398460797 and 398460806.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3984559 + ... + 3984658.

Almost surely, 2^398460850 is an apocalyptic number.

398460850 is a deficient number, since it is larger than the sum of its proper divisors (342676424).

398460850 is a wasteful number, since it uses less digits than its factorization.

398460850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7969229 (or 7969224 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 398460850 is about 19961.4841632580. The cubic root of 398460850 is about 735.8600388102.

The spelling of 398460850 in words is "three hundred ninety-eight million, four hundred sixty thousand, eight hundred fifty".