1322342144 has 72 divisors (see below), whose sum is σ = 2806640928. Its totient is φ = 619642880.

The previous prime is 1322342143. The next prime is 1322342173. The reversal of 1322342144 is 4412432231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322342143) 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 7 ways as a sum of consecutive naturals, for example, 1352984 + ... + 1353960.

It is an arithmetic number, because the mean of its divisors is an integer number (38981124).

Almost surely, 2^1322342144 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 1322342144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1403320464).

1322342144 is an abundant number, since it is smaller than the sum of its proper divisors (1484298784).

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

1322342144 is an equidigital number, since it uses as much as digits as its factorization.

1322342144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321 (or 1307 counting only the distinct ones).

The product of its digits is 4608, while the sum is 26.

The square root of 1322342144 is about 36364.0226597663. The cubic root of 1322342144 is about 1097.6097254534.

Adding to 1322342144 its reverse (4412432231), we get a palindrome (5734774375).

The spelling of 1322342144 in words is "one billion, three hundred twenty-two million, three hundred forty-two thousand, one hundred forty-four".