168542022 has 32 divisors (see below), whose sum is σ = 383719680. Its totient is φ = 48852320.

The previous prime is 168541981. The next prime is 168542039. The reversal of 168542022 is 220245861.

It is a congruent number.

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, 53997 + ... + 57032.

It is an arithmetic number, because the mean of its divisors is an integer number (11991240).

Almost surely, 2^168542022 is an apocalyptic number.

168542022 is an abundant number, since it is smaller than the sum of its proper divisors (215177658).

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

168542022 is a wasteful number, since it uses less digits than its factorization.

168542022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111068.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 168542022 is about 12982.3735118044. The cubic root of 168542022 is about 552.3776099846.

Adding to 168542022 its reverse (220245861), we get a palindrome (388787883).

The spelling of 168542022 in words is "one hundred sixty-eight million, five hundred forty-two thousand, twenty-two".