168323090 has 32 divisors (see below), whose sum is σ = 343465920. Its totient is φ = 58878144.

The previous prime is 168323083. The next prime is 168323189. The reversal of 168323090 is 90323861.

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, 31604 + ... + 36543.

It is an arithmetic number, because the mean of its divisors is an integer number (10733310).

Almost surely, 2^168323090 is an apocalyptic number.

168323090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168323090 is an abundant number, since it is smaller than the sum of its proper divisors (175142830).

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

168323090 is a wasteful number, since it uses less digits than its factorization.

168323090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68186.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 168323090 is about 12973.9388776115. The cubic root of 168323090 is about 552.1383313083.

The spelling of 168323090 in words is "one hundred sixty-eight million, three hundred twenty-three thousand, ninety".