299480280 has 128 divisors (see below), whose sum is σ = 1031788800. Its totient is φ = 68774400.

The previous prime is 299480273. The next prime is 299480297. The reversal of 299480280 is 82084992.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

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, 19110 + ... + 31050.

It is an arithmetic number, because the mean of its divisors is an integer number (8060850).

Almost surely, 2^299480280 is an apocalyptic number.

299480280 is a gapful number since it is divisible by the number (20) 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 299480280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (515894400).

299480280 is an abundant number, since it is smaller than the sum of its proper divisors (732308520).

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

299480280 is a wasteful number, since it uses less digits than its factorization.

299480280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11985 (or 11981 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 299480280 is about 17305.4985481494. The cubic root of 299480280 is about 669.0461514185.

The spelling of 299480280 in words is "two hundred ninety-nine million, four hundred eighty thousand, two hundred eighty".