168211842 has 16 divisors (see below), whose sum is σ = 345516672. Its totient is φ = 54555120.

The previous prime is 168211819. The next prime is 168211843. The reversal of 168211842 is 248112861.

It is not an unprimeable number, because it can be changed into a prime (168211843) 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 7 ways as a sum of consecutive naturals, for example, 378634 + ... + 379077.

It is an arithmetic number, because the mean of its divisors is an integer number (21594792).

Almost surely, 2^168211842 is an apocalyptic number.

168211842 is an abundant number, since it is smaller than the sum of its proper divisors (177304830).

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

168211842 is a wasteful number, since it uses less digits than its factorization.

168211842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757753.

The product of its digits is 6144, while the sum is 33.

The square root of 168211842 is about 12969.6508048598. The cubic root of 168211842 is about 552.0166648508.

The spelling of 168211842 in words is "one hundred sixty-eight million, two hundred eleven thousand, eight hundred forty-two".