1299342668 has 12 divisors (see below), whose sum is σ = 2448761280. Its totient is φ = 599696592.

The previous prime is 1299342659. The next prime is 1299342677. The reversal of 1299342668 is 8662439921.

It is an interprime number because it is at equal distance from previous prime (1299342659) and next prime (1299342677).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12493628 + ... + 12493731.

It is an arithmetic number, because the mean of its divisors is an integer number (204063440).

Almost surely, 2^1299342668 is an apocalyptic number.

It is an amenable number.

1299342668 is a deficient number, since it is larger than the sum of its proper divisors (1149418612).

1299342668 is a wasteful number, since it uses less digits than its factorization.

1299342668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24987376 (or 24987374 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 50.

The square root of 1299342668 is about 36046.3960473166. The cubic root of 1299342668 is about 1091.2089014157.

The spelling of 1299342668 in words is "one billion, two hundred ninety-nine million, three hundred forty-two thousand, six hundred sixty-eight".