168806274 has 96 divisors (see below), whose sum is σ = 437814720. Its totient is φ = 42956928.

The previous prime is 168806251. The next prime is 168806329. The reversal of 168806274 is 472608861.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 110077 + ... + 111599.

It is an arithmetic number, because the mean of its divisors is an integer number (4560570).

Almost surely, 2^168806274 is an apocalyptic number.

168806274 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 168806274, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218907360).

168806274 is an abundant number, since it is smaller than the sum of its proper divisors (269008446).

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

168806274 is a wasteful number, since it uses less digits than its factorization.

168806274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1584 (or 1577 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 168806274 is about 12992.5468634906. The cubic root of 168806274 is about 552.6661446918. Note that the first 3 decimals are identical.

The spelling of 168806274 in words is "one hundred sixty-eight million, eight hundred six thousand, two hundred seventy-four".