1299394 has 4 divisors (see below), whose sum is σ = 1949094. Its totient is φ = 649696.

The previous prime is 1299379. The next prime is 1299437. The reversal of 1299394 is 4939921.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1243225 + 56169 = 1115^2 + 237^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324847 + ... + 324850.

2^1299394 is an apocalyptic number.

1299394 is a deficient number, since it is larger than the sum of its proper divisors (649700).

1299394 is an equidigital number, since it uses as much as digits as its factorization.

1299394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649699.

The product of its digits is 17496, while the sum is 37.

The square root of 1299394 is about 1139.9096455421. The cubic root of 1299394 is about 109.1223271040.

The spelling of 1299394 in words is "one million, two hundred ninety-nine thousand, three hundred ninety-four".