168280980 has 96 divisors (see below), whose sum is σ = 547706880. Its totient is φ = 37806720.

The previous prime is 168280979. The next prime is 168280991. The reversal of 168280980 is 89082861.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21385 + ... + 28175.

It is an arithmetic number, because the mean of its divisors is an integer number (5705280).

Almost surely, 2^168280980 is an apocalyptic number.

168280980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168280980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273853440).

168280980 is an abundant number, since it is smaller than the sum of its proper divisors (379425900).

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

168280980 is a wasteful number, since it uses less digits than its factorization.

168280980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6869 (or 6867 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 42.

The square root of 168280980 is about 12972.3159073467. The cubic root of 168280980 is about 552.0922839829.

The spelling of 168280980 in words is "one hundred sixty-eight million, two hundred eighty thousand, nine hundred eighty".