398463916 has 12 divisors (see below), whose sum is σ = 697656960. Its totient is φ = 199133360.

The previous prime is 398463899. The next prime is 398463943. The reversal of 398463916 is 619364893.

It is a self number, because there is not a number n which added to its sum of digits gives 398463916.

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 3 ways as a sum of consecutive naturals, for example, 15151 + ... + 32038.

It is an arithmetic number, because the mean of its divisors is an integer number (58138080).

Almost surely, 2^398463916 is an apocalyptic number.

It is an amenable number.

398463916 is a deficient number, since it is larger than the sum of its proper divisors (299193044).

398463916 is a wasteful number, since it uses less digits than its factorization.

398463916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49304 (or 49302 counting only the distinct ones).

The product of its digits is 839808, while the sum is 49.

The square root of 398463916 is about 19961.5609610070. The cubic root of 398463916 is about 735.8619261901.

The spelling of 398463916 in words is "three hundred ninety-eight million, four hundred sixty-three thousand, nine hundred sixteen".