1322361660 has 192 divisors, whose sum is σ = 4069989504. Its totient is φ = 319488000.

The previous prime is 1322361617. The next prime is 1322361673. The reversal of 1322361660 is 661632231.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3297460 + ... + 3297860.

It is an arithmetic number, because the mean of its divisors is an integer number (21197862).

Almost surely, 2^1322361660 is an apocalyptic number.

1322361660 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 1322361660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2034994752).

1322361660 is an abundant number, since it is smaller than the sum of its proper divisors (2747627844).

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

1322361660 is a wasteful number, since it uses less digits than its factorization.

1322361660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544 (or 542 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 1322361660 is about 36364.2910009256. The cubic root of 1322361660 is about 1097.6151251769.

Adding to 1322361660 its reverse (661632231), we get a palindrome (1983993891).

The spelling of 1322361660 in words is "one billion, three hundred twenty-two million, three hundred sixty-one thousand, six hundred sixty".