163674490 has 16 divisors (see below), whose sum is σ = 336701952. Its totient is φ = 56116944.

The previous prime is 163674481. The next prime is 163674503. The reversal of 163674490 is 94476361.

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, 1169034 + ... + 1169173.

It is an arithmetic number, because the mean of its divisors is an integer number (21043872).

Almost surely, 2^163674490 is an apocalyptic number.

163674490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163674490 is an abundant number, since it is smaller than the sum of its proper divisors (173027462).

163674490 is a wasteful number, since it uses less digits than its factorization.

163674490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2338221.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 163674490 is about 12793.5331320163. The cubic root of 163674490 is about 547.0079842690.

The spelling of 163674490 in words is "one hundred sixty-three million, six hundred seventy-four thousand, four hundred ninety".