298422749 has 2 divisors, whose sum is σ = 298422750. Its totient is φ = 298422748.

The previous prime is 298422739. The next prime is 298422763. The reversal of 298422749 is 947224892.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 218892025 + 79530724 = 14795^2 + 8918^2 .

It is a cyclic number.

It is not a de Polignac number, because 298422749 - 2²⁰ = 297374173 is a prime.

It is a super-2 number, since 2×298422749² = 178112274241434002, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (298422739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149211374 + 149211375.

It is an arithmetic number, because the mean of its divisors is an integer number (149211375).

Almost surely, 2^298422749 is an apocalyptic number.

It is an amenable number.

298422749 is a deficient number, since it is larger than the sum of its proper divisors (1).

298422749 is an equidigital number, since it uses as much as digits as its factorization.

298422749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 580608, while the sum is 47.

The square root of 298422749 is about 17274.9167581207. The cubic root of 298422749 is about 668.2577060642.

The spelling of 298422749 in words is "two hundred ninety-eight million, four hundred twenty-two thousand, seven hundred forty-nine".