298494221 has 4 divisors (see below), whose sum is σ = 298546944. Its totient is φ = 298441500.

The previous prime is 298494193. The next prime is 298494223. The reversal of 298494221 is 122494892.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-298494221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (298494223) 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 3 ways as a sum of consecutive naturals, for example, 16685 + ... + 29586.

It is an arithmetic number, because the mean of its divisors is an integer number (74636736).

Almost surely, 2^298494221 is an apocalyptic number.

It is an amenable number.

298494221 is a deficient number, since it is larger than the sum of its proper divisors (52723).

298494221 is an equidigital number, since it uses as much as digits as its factorization.

298494221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52722.

The product of its digits is 82944, while the sum is 41.

The square root of 298494221 is about 17276.9852983673. The cubic root of 298494221 is about 668.3110508606.

The spelling of 298494221 in words is "two hundred ninety-eight million, four hundred ninety-four thousand, two hundred twenty-one".