1322345632 has 36 divisors (see below), whose sum is σ = 2665438650. Its totient is φ = 645767808.

The previous prime is 1322345587. The next prime is 1322345639. The reversal of 1322345632 is 2365432231.

It can be written as a sum of positive squares in only one way, i.e., 1267644816 + 54700816 = 35604^2 + 7396^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1322345594 and 1322345603.

It is not an unprimeable number, because it can be changed into a prime (1322345639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 47994 + ... + 70342.

Almost surely, 2^1322345632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1322345632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1332719325).

1322345632 is an abundant number, since it is smaller than the sum of its proper divisors (1343093018).

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

1322345632 is an equidigital number, since it uses as much as digits as its factorization.

1322345632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22445 (or 22394 counting only the distinct ones).

The product of its digits is 25920, while the sum is 31.

The square root of 1322345632 is about 36364.0706192252. The cubic root of 1322345632 is about 1097.6106905236.

Adding to 1322345632 its reverse (2365432231), we get a palindrome (3687777863).

The spelling of 1322345632 in words is "one billion, three hundred twenty-two million, three hundred forty-five thousand, six hundred thirty-two".