298634688 has 140 divisors (see below), whose sum is σ = 965908152. Its totient is φ = 90478080.

The previous prime is 298634681. The next prime is 298634719. The reversal of 298634688 is 886436892.

298634688 is a `hidden beast` number, since 298 + 6 + 346 + 8 + 8 = 666.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (298634681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 54406 + ... + 59642.

Almost surely, 2^298634688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 298634688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (482954076).

298634688 is an abundant number, since it is smaller than the sum of its proper divisors (667273464).

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

298634688 is a wasteful number, since it uses less digits than its factorization.

298634688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5272 (or 5253 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 54.

The square root of 298634688 is about 17281.0499681009. The cubic root of 298634688 is about 668.4158668784.

The spelling of 298634688 in words is "two hundred ninety-eight million, six hundred thirty-four thousand, six hundred eighty-eight".