1322504120 has 192 divisors, whose sum is σ = 3859812000. Its totient is φ = 404103168.

The previous prime is 1322504107. The next prime is 1322504123. The reversal of 1322504120 is 214052231.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1322504092 and 1322504101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322504123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 632036 + ... + 634124.

Almost surely, 2^1322504120 is an apocalyptic number.

1322504120 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 1322504120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1929906000).

1322504120 is an abundant number, since it is smaller than the sum of its proper divisors (2537307880).

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

1322504120 is a wasteful number, since it uses less digits than its factorization.

1322504120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2150 (or 2139 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1322504120 is about 36366.2497379095. The cubic root of 1322504120 is about 1097.6545396681.

Adding to 1322504120 its reverse (214052231), we get a palindrome (1536556351).

The spelling of 1322504120 in words is "one billion, three hundred twenty-two million, five hundred four thousand, one hundred twenty".