1322322240 has 224 divisors, whose sum is σ = 4351666176. Its totient is φ = 339978240.

The previous prime is 1322322229. The next prime is 1322322241. The reversal of 1322322240 is 422232231.

It is a super-2 number, since 2×1322322240² = 3497072212797235200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322322241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4251685 + ... + 4251995.

Almost surely, 2^1322322240 is an apocalyptic number.

1322322240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1322322240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2175833088).

1322322240 is an abundant number, since it is smaller than the sum of its proper divisors (3029343936).

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

1322322240 is a wasteful number, since it uses less digits than its factorization.

1322322240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477 (or 467 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 1322322240 is about 36363.7489816438. The cubic root of 1322322240 is about 1097.6042183225.

Adding to 1322322240 its reverse (422232231), we get a palindrome (1744554471).

Subtracting from 1322322240 its reverse (422232231), we obtain a palindrome (900090009).

The spelling of 1322322240 in words is "one billion, three hundred twenty-two million, three hundred twenty-two thousand, two hundred forty".