299666349 has 12 divisors (see below), whose sum is σ = 433258176. Its totient is φ = 199589832.

The previous prime is 299666329. The next prime is 299666351. The reversal of 299666349 is 943666992.

It is not a de Polignac number, because 299666349 - 2⁸ = 299666093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 299666295 and 299666304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (299666329) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5167 + ... + 25020.

It is an arithmetic number, because the mean of its divisors is an integer number (36104848).

Almost surely, 2^299666349 is an apocalyptic number.

It is an amenable number.

299666349 is a deficient number, since it is larger than the sum of its proper divisors (133591827).

299666349 is a wasteful number, since it uses less digits than its factorization.

299666349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31296 (or 31293 counting only the distinct ones).

The product of its digits is 3779136, while the sum is 54.

The square root of 299666349 is about 17310.8737214503. The cubic root of 299666349 is about 669.1846836065.

It can be divided in two parts, 29966 and 6349, that added together give a triangular number (36315 = T₂₆₉).

The spelling of 299666349 in words is "two hundred ninety-nine million, six hundred sixty-six thousand, three hundred forty-nine".