1299968 has 20 divisors (see below), whose sum is σ = 2598420. Its totient is φ = 649728.

The previous prime is 1299953. The next prime is 1299979. The reversal of 1299968 is 8699921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 758 + ... + 1781.

It is an arithmetic number, because the mean of its divisors is an integer number (129921).

2^1299968 is an apocalyptic number.

It is an amenable number.

1299968 is a deficient number, since it is larger than the sum of its proper divisors (1298452).

1299968 is an frugal number, since it uses more digits than its factorization.

1299968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2557 (or 2541 counting only the distinct ones).

The product of its digits is 69984, while the sum is 44.

The square root of 1299968 is about 1140.1613920845. The cubic root of 1299968 is about 109.1383927969.

The spelling of 1299968 in words is "one million, two hundred ninety-nine thousand, nine hundred sixty-eight".