163403946 has 16 divisors (see below), whose sum is σ = 363120000. Its totient is φ = 54467964.

The previous prime is 163403899. The next prime is 163403953. The reversal of 163403946 is 649304361.

163403946 is a `hidden beast` number, since 163 + 403 + 94 + 6 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 163403946.

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, 1512946 + ... + 1513053.

It is an arithmetic number, because the mean of its divisors is an integer number (22695000).

Almost surely, 2^163403946 is an apocalyptic number.

163403946 is an abundant number, since it is smaller than the sum of its proper divisors (199716054).

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

163403946 is a wasteful number, since it uses less digits than its factorization.

163403946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3026010 (or 3026004 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 163403946 is about 12782.9552921068. The cubic root of 163403946 is about 546.7064277214.

The spelling of 163403946 in words is "one hundred sixty-three million, four hundred three thousand, nine hundred forty-six".