298397649 has 8 divisors (see below), whose sum is σ = 434032992. Its totient is φ = 180847040.

The previous prime is 298397623. The next prime is 298397657. The reversal of 298397649 is 946793892.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 298397649 - 2⁹ = 298397137 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (298397609) 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, 4521144 + ... + 4521209.

It is an arithmetic number, because the mean of its divisors is an integer number (54254124).

Almost surely, 2^298397649 is an apocalyptic number.

It is an amenable number.

298397649 is a deficient number, since it is larger than the sum of its proper divisors (135635343).

298397649 is a wasteful number, since it uses less digits than its factorization.

298397649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9042367.

The product of its digits is 5878656, while the sum is 57.

The square root of 298397649 is about 17274.1902559860. The cubic root of 298397649 is about 668.2389700722.

The spelling of 298397649 in words is "two hundred ninety-eight million, three hundred ninety-seven thousand, six hundred forty-nine".