168444312 has 16 divisors (see below), whose sum is σ = 421110840. Its totient is φ = 56148096.

The previous prime is 168444307. The next prime is 168444323. The reversal of 168444312 is 213444861.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3509233 + ... + 3509280.

Almost surely, 2^168444312 is an apocalyptic number.

168444312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

168444312 is an abundant number, since it is smaller than the sum of its proper divisors (252666528).

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

168444312 is a wasteful number, since it uses less digits than its factorization.

168444312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7018522 (or 7018518 counting only the distinct ones).

The product of its digits is 18432, while the sum is 33.

The square root of 168444312 is about 12978.6097868763. The cubic root of 168444312 is about 552.2708448211.

The spelling of 168444312 in words is "one hundred sixty-eight million, four hundred forty-four thousand, three hundred twelve".