168370812 has 72 divisors (see below), whose sum is σ = 446898816. Its totient is φ = 55420848.

The previous prime is 168370793. The next prime is 168370817. The reversal of 168370812 is 218073861.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168370817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79633 + ... + 81719.

It is an arithmetic number, because the mean of its divisors is an integer number (6206928).

Almost surely, 2^168370812 is an apocalyptic number.

168370812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168370812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223449408).

168370812 is an abundant number, since it is smaller than the sum of its proper divisors (278528004).

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

168370812 is a wasteful number, since it uses less digits than its factorization.

168370812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2189 (or 2175 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 168370812 is about 12975.7778957564. Note that the first 3 decimals coincide. The cubic root of 168370812 is about 552.1905060787.

The spelling of 168370812 in words is "one hundred sixty-eight million, three hundred seventy thousand, eight hundred twelve".