298640868 has 24 divisors (see below), whose sum is σ = 698595072. Its totient is φ = 99294624.

The previous prime is 298640863. The next prime is 298640873. The reversal of 298640868 is 868046892.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (298640863) and next prime (298640873).

It is a self number, because there is not a number n which added to its sum of digits gives 298640868.

It is not an unprimeable number, because it can be changed into a prime (298640861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26580 + ... + 36107.

It is an arithmetic number, because the mean of its divisors is an integer number (29108128).

Almost surely, 2^298640868 is an apocalyptic number.

It is an amenable number.

298640868 is an abundant number, since it is smaller than the sum of its proper divisors (399954204).

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

298640868 is a wasteful number, since it uses less digits than its factorization.

298640868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63091 (or 63089 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 51.

The square root of 298640868 is about 17281.2287757555. The cubic root of 298640868 is about 668.4204776193.

The spelling of 298640868 in words is "two hundred ninety-eight million, six hundred forty thousand, eight hundred sixty-eight".