1320442 has 8 divisors (see below), whose sum is σ = 2018196. Its totient is φ = 647712.

The previous prime is 1320437. The next prime is 1320533. The reversal of 1320442 is 2440231.

It can be written as a sum of positive squares in 2 ways, for example, as 1212201 + 108241 = 1101^2 + 329^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 in 3 ways as a sum of consecutive naturals, for example, 6123 + ... + 6334.

2^1320442 is an apocalyptic number.

1320442 is a deficient number, since it is larger than the sum of its proper divisors (697754).

1320442 is a wasteful number, since it uses less digits than its factorization.

1320442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12512.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1320442 is about 1149.1048690176. The cubic root of 1320442 is about 109.7083735434.

Adding to 1320442 its reverse (2440231), we get a palindrome (3760673).

The spelling of 1320442 in words is "one million, three hundred twenty thousand, four hundred forty-two".