1253322 has 60 divisors (see below), whose sum is σ = 3277170. Its totient is φ = 345744.

The previous prime is 1253279. The next prime is 1253323. The reversal of 1253322 is 2233521.

It can be written as a sum of positive squares in only one way, i.e., 1058841 + 194481 = 1029^2 + 441^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1253295 and 1253304.

It is not an unprimeable number, because it can be changed into a prime (1253323) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 43204 + ... + 43232.

2^1253322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1253322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1638585).

1253322 is an abundant number, since it is smaller than the sum of its proper divisors (2023848).

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

1253322 is an equidigital number, since it uses as much as digits as its factorization.

1253322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65 (or 41 counting only the distinct ones).

The product of its digits is 360, while the sum is 18.

The square root of 1253322 is about 1119.5186465620. The cubic root of 1253322 is about 107.8170771844.

Adding to 1253322 its reverse (2233521), we get a palindrome (3486843).

The spelling of 1253322 in words is "one million, two hundred fifty-three thousand, three hundred twenty-two".