168823490 has 32 divisors (see below), whose sum is σ = 332144064. Its totient is φ = 61272640.

The previous prime is 168823453. The next prime is 168823507. The reversal of 168823490 is 94328861.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73337 + ... + 75603.

It is an arithmetic number, because the mean of its divisors is an integer number (10379502).

Almost surely, 2^168823490 is an apocalyptic number.

168823490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168823490 is a deficient number, since it is larger than the sum of its proper divisors (163320574).

168823490 is a wasteful number, since it uses less digits than its factorization.

168823490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2962.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 168823490 is about 12993.2093802878. The cubic root of 168823490 is about 552.6849322575.

The spelling of 168823490 in words is "one hundred sixty-eight million, eight hundred twenty-three thousand, four hundred ninety".