398563146 has 16 divisors (see below), whose sum is σ = 885696000. Its totient is φ = 132854364.

The previous prime is 398563129. The next prime is 398563157. The reversal of 398563146 is 641365893.

398563146 is a `hidden beast` number, since 3 + 9 + 8 + 5 + 631 + 4 + 6 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3690346 + ... + 3690453.

It is an arithmetic number, because the mean of its divisors is an integer number (55356000).

Almost surely, 2^398563146 is an apocalyptic number.

398563146 is an abundant number, since it is smaller than the sum of its proper divisors (487132854).

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

398563146 is a wasteful number, since it uses less digits than its factorization.

398563146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7380810 (or 7380804 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 398563146 is about 19964.0463333464. The cubic root of 398563146 is about 735.9230053456.

The spelling of 398563146 in words is "three hundred ninety-eight million, five hundred sixty-three thousand, one hundred forty-six".