1330442 has 4 divisors (see below), whose sum is σ = 1995666. Its totient is φ = 665220.

The previous prime is 1330423. The next prime is 1330453. The reversal of 1330442 is 2440331.

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., 1301881 + 28561 = 1141^2 + 169^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1330442.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332609 + ... + 332612.

2^1330442 is an apocalyptic number.

1330442 is a deficient number, since it is larger than the sum of its proper divisors (665224).

1330442 is an equidigital number, since it uses as much as digits as its factorization.

1330442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665223.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 1330442 is about 1153.4478748517. The cubic root of 1330442 is about 109.9846259505.

Adding to 1330442 its reverse (2440331), we get a palindrome (3770773).

The spelling of 1330442 in words is "one million, three hundred thirty thousand, four hundred forty-two".