168450540 has 48 divisors (see below), whose sum is σ = 474163200. Its totient is φ = 44681920.

The previous prime is 168450539. The next prime is 168450587. The reversal of 168450540 is 45054861.

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 15 ways as a sum of consecutive naturals, for example, 4111 + ... + 18809.

It is an arithmetic number, because the mean of its divisors is an integer number (9878400).

Almost surely, 2^168450540 is an apocalyptic number.

168450540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168450540 is an abundant number, since it is smaller than the sum of its proper divisors (305712660).

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

168450540 is a wasteful number, since it uses less digits than its factorization.

168450540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14902 (or 14900 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 168450540 is about 12978.8497179064. The cubic root of 168450540 is about 552.2776512257.

The spelling of 168450540 in words is "one hundred sixty-eight million, four hundred fifty thousand, five hundred forty".