298897920 has 120 divisors (see below), whose sum is σ = 1035247356. Its totient is φ = 79699968.

The previous prime is 298897919. The next prime is 298897943. The reversal of 298897920 is 29798892.

It can be written as a sum of positive squares in 2 ways, for example, as 246364416 + 52533504 = 15696^2 + 7248^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16554 + ... + 29526.

Almost surely, 2^298897920 is an apocalyptic number.

298897920 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 298897920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (517623678).

298897920 is an abundant number, since it is smaller than the sum of its proper divisors (736349436).

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

298897920 is a wasteful number, since it uses less digits than its factorization.

298897920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13002 (or 12983 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The square root of 298897920 is about 17288.6644944021. The cubic root of 298897920 is about 668.6122012641.

The spelling of 298897920 in words is "two hundred ninety-eight million, eight hundred ninety-seven thousand, nine hundred twenty".