1322240660 has 48 divisors (see below), whose sum is σ = 3053949696. Its totient is φ = 477820032.

The previous prime is 1322240651. The next prime is 1322240663. The reversal of 1322240660 is 660422231.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322240663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41882 + ... + 66321.

It is an arithmetic number, because the mean of its divisors is an integer number (63623952).

Almost surely, 2^1322240660 is an apocalyptic number.

1322240660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1322240660 is an abundant number, since it is smaller than the sum of its proper divisors (1731709036).

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

1322240660 is a wasteful number, since it uses less digits than its factorization.

1322240660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108272 (or 108270 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 1322240660 is about 36362.6272428162. The cubic root of 1322240660 is about 1097.5816458131.

Adding to 1322240660 its reverse (660422231), we get a palindrome (1982662891).

The spelling of 1322240660 in words is "one billion, three hundred twenty-two million, two hundred forty thousand, six hundred sixty".