1321242 has 24 divisors (see below), whose sum is σ = 2863584. Its totient is φ = 406224.

The previous prime is 1321219. The next prime is 1321247. The reversal of 1321242 is 2421231.

It is not an unprimeable number, because it can be changed into a prime (1321247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 363 + ... + 1665.

It is an arithmetic number, because the mean of its divisors is an integer number (119316).

2^1321242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1321242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1431792).

1321242 is an abundant number, since it is smaller than the sum of its proper divisors (1542342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1321242 is a wasteful number, since it uses less digits than its factorization.

1321242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334 (or 1321 counting only the distinct ones).

The product of its digits is 96, while the sum is 15.

The square root of 1321242 is about 1149.4529133462. The cubic root of 1321242 is about 109.7305249594.

Adding to 1321242 its reverse (2421231), we get a palindrome (3742473).

The spelling of 1321242 in words is "one million, three hundred twenty-one thousand, two hundred forty-two".