1209394 has 4 divisors (see below), whose sum is σ = 1814094. Its totient is φ = 604696.

The previous prime is 1209379. The next prime is 1209427. The reversal of 1209394 is 4939021.

It is a happy number.

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., 974169 + 235225 = 987^2 + 485^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302347 + ... + 302350.

2^1209394 is an apocalyptic number.

1209394 is a deficient number, since it is larger than the sum of its proper divisors (604700).

1209394 is an equidigital number, since it uses as much as digits as its factorization.

1209394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604699.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 1209394 is about 1099.7245109572. The cubic root of 1209394 is about 106.5424313133.

The spelling of 1209394 in words is "one million, two hundred nine thousand, three hundred ninety-four".