1321442 has 12 divisors (see below), whose sum is σ = 2073750. Its totient is φ = 631488.

The previous prime is 1321429. The next prime is 1321447. The reversal of 1321442 is 2441231.

It can be written as a sum of positive squares in only one way, i.e., 1168561 + 152881 = 1081^2 + 391^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1321442.

It is not an unprimeable number, because it can be changed into a prime (1321447) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 434 + ... + 1682.

2^1321442 is an apocalyptic number.

1321442 is a deficient number, since it is larger than the sum of its proper divisors (752308).

1321442 is a wasteful number, since it uses less digits than its factorization.

1321442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1297 (or 1274 counting only the distinct ones).

The product of its digits is 192, while the sum is 17.

The square root of 1321442 is about 1149.5399079632. The cubic root of 1321442 is about 109.7360614162.

Adding to 1321442 its reverse (2441231), we get a palindrome (3762673).

The spelling of 1321442 in words is "one million, three hundred twenty-one thousand, four hundred forty-two".