299739969 has 27 divisors (see below), whose sum is σ = 450666723. Its totient is φ = 191966544.

The previous prime is 299739941. The next prime is 299739989. The reversal of 299739969 is 969937992.

The square root of 299739969 is 17313.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 157176369 + 142563600 = 12537^2 + 11940^2 .

It is not a de Polignac number, because 299739969 - 2⁹ = 299739457 is a prime.

It is a super-4 number, since 4×299739969⁴ (a number of 35 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (299739989) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1506132 + ... + 1506330.

Almost surely, 2^299739969 is an apocalyptic number.

299739969 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

299739969 is the 17313-rd square number.

299739969 is the 8657-th centered octagonal number.

It is an amenable number.

299739969 is a deficient number, since it is larger than the sum of its proper divisors (150926754).

299739969 is an equidigital number, since it uses as much as digits as its factorization.

299739969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462 (or 231 counting only the distinct ones).

The product of its digits is 14880348, while the sum is 63.

The cubic root of 299739969 is about 669.2394793738.

The spelling of 299739969 in words is "two hundred ninety-nine million, seven hundred thirty-nine thousand, nine hundred sixty-nine".