298112640 has 256 divisors, whose sum is σ = 1114525440. Its totient is φ = 66355200.

The previous prime is 298112627. The next prime is 298112653. The reversal of 298112640 is 46211892.

It is an interprime number because it is at equal distance from previous prime (298112627) and next prime (298112653).

It is a super-2 number, since 2×298112640² = 177742292255539200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 550770 + ... + 551310.

It is an arithmetic number, because the mean of its divisors is an integer number (4353615).

Almost surely, 2^298112640 is an apocalyptic number.

298112640 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 298112640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (557262720).

298112640 is an abundant number, since it is smaller than the sum of its proper divisors (816412800).

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

298112640 is a wasteful number, since it uses less digits than its factorization.

298112640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611 (or 599 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 298112640 is about 17265.9387233941. The cubic root of 298112640 is about 668.0261502665.

The spelling of 298112640 in words is "two hundred ninety-eight million, one hundred twelve thousand, six hundred forty".