298822399 has 2 divisors, whose sum is σ = 298822400. Its totient is φ = 298822398.

The previous prime is 298822373. The next prime is 298822429. The reversal of 298822399 is 993228892.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 298822399 - 2¹¹ = 298820351 is a prime.

It is a super-2 number, since 2×298822399² = 178589652288230402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (298822499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149411199 + 149411200.

It is an arithmetic number, because the mean of its divisors is an integer number (149411200).

Almost surely, 2^298822399 is an apocalyptic number.

298822399 is a deficient number, since it is larger than the sum of its proper divisors (1).

298822399 is an equidigital number, since it uses as much as digits as its factorization.

298822399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1119744, while the sum is 52.

The square root of 298822399 is about 17286.4802374572. The cubic root of 298822399 is about 668.5558849189. Note that the first 3 decimals are identical.

The spelling of 298822399 in words is "two hundred ninety-eight million, eight hundred twenty-two thousand, three hundred ninety-nine".