298885680 has 80 divisors (see below), whose sum is σ = 1029502560. Its totient is φ = 79702272.

The previous prime is 298885661. The next prime is 298885703. The reversal of 298885680 is 86588892.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 67027 + ... + 71346.

It is an arithmetic number, because the mean of its divisors is an integer number (12868782).

Almost surely, 2^298885680 is an apocalyptic number.

298885680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

298885680 is an abundant number, since it is smaller than the sum of its proper divisors (730616880).

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

298885680 is a wasteful number, since it uses less digits than its factorization.

298885680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138395 (or 138383 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 54.

The square root of 298885680 is about 17288.3105016077. The cubic root of 298885680 is about 668.6030744859.

The spelling of 298885680 in words is "two hundred ninety-eight million, eight hundred eighty-five thousand, six hundred eighty".