1253336322 has 64 divisors (see below), whose sum is σ = 3038238720. Its totient is φ = 336481536.

The previous prime is 1253336299. The next prime is 1253336347. The reversal of 1253336322 is 2236333521.

It is a self number, because there is not a number n which added to its sum of digits gives 1253336322.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 632329 + ... + 634307.

It is an arithmetic number, because the mean of its divisors is an integer number (47472480).

Almost surely, 2^1253336322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1253336322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1519119360).

1253336322 is an abundant number, since it is smaller than the sum of its proper divisors (1784902398).

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

1253336322 is a wasteful number, since it uses less digits than its factorization.

1253336322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2895.

The product of its digits is 19440, while the sum is 30.

The square root of 1253336322 is about 35402.4903361331. The cubic root of 1253336322 is about 1078.1748786636.

Adding to 1253336322 its reverse (2236333521), we get a palindrome (3489669843).

The spelling of 1253336322 in words is "one billion, two hundred fifty-three million, three hundred thirty-six thousand, three hundred twenty-two".