163910490 has 16 divisors (see below), whose sum is σ = 393385248. Its totient is φ = 43709456.

The previous prime is 163910471. The next prime is 163910507. The reversal of 163910490 is 94019361.

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 7 ways as a sum of consecutive naturals, for example, 2731812 + ... + 2731871.

It is an arithmetic number, because the mean of its divisors is an integer number (24586578).

Almost surely, 2^163910490 is an apocalyptic number.

163910490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163910490 is an abundant number, since it is smaller than the sum of its proper divisors (229474758).

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

163910490 is a wasteful number, since it uses less digits than its factorization.

163910490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5463693.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 163910490 is about 12802.7532195227. The cubic root of 163910490 is about 547.2707657765.

The spelling of 163910490 in words is "one hundred sixty-three million, nine hundred ten thousand, four hundred ninety".