168493480 has 32 divisors (see below), whose sum is σ = 392185800. Its totient is φ = 65072896.

The previous prime is 168493453. The next prime is 168493487. The reversal of 168493480 is 84394861.

It can be written as a sum of positive squares in 4 ways, for example, as 123254404 + 45239076 = 11102^2 + 6726^2 .

It is not an unprimeable number, because it can be changed into a prime (168493487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71467 + ... + 73786.

Almost surely, 2^168493480 is an apocalyptic number.

168493480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168493480 is an abundant number, since it is smaller than the sum of its proper divisors (223692320).

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

168493480 is a wasteful number, since it uses less digits than its factorization.

168493480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145293 (or 145289 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 168493480 is about 12980.5038423013. The cubic root of 168493480 is about 552.3245745690.

The spelling of 168493480 in words is "one hundred sixty-eight million, four hundred ninety-three thousand, four hundred eighty".