1299366 has 24 divisors (see below), whose sum is σ = 2892864. Its totient is φ = 421200.

The previous prime is 1299359. The next prime is 1299367. The reversal of 1299366 is 6639921.

1299366 is a `hidden beast` number, since 1 + 299 + 366 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1299366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1299367) 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, 310 + ... + 1641.

It is an arithmetic number, because the mean of its divisors is an integer number (120536).

2^1299366 is an apocalyptic number.

1299366 is an abundant number, since it is smaller than the sum of its proper divisors (1593498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1299366 is a wasteful number, since it uses less digits than its factorization.

1299366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1996 (or 1993 counting only the distinct ones).

The product of its digits is 17496, while the sum is 36.

The square root of 1299366 is about 1139.8973638008. The cubic root of 1299366 is about 109.1215432906.

The spelling of 1299366 in words is "one million, two hundred ninety-nine thousand, three hundred sixty-six".