1324232220 has 192 divisors, whose sum is σ = 4011194880. Its totient is φ = 325721088.

The previous prime is 1324232201. The next prime is 1324232267. The reversal of 1324232220 is 222324231.

It is a super-2 number, since 2×1324232220² = 3507181944972256800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 4313307 + ... + 4313613.

It is an arithmetic number, because the mean of its divisors is an integer number (20891640).

Almost surely, 2^1324232220 is an apocalyptic number.

1324232220 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 1324232220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2005597440).

1324232220 is an abundant number, since it is smaller than the sum of its proper divisors (2686962660).

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

1324232220 is a wasteful number, since it uses less digits than its factorization.

1324232220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452 (or 450 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 1324232220 is about 36390.0016488046. The cubic root of 1324232220 is about 1098.1324288433.

Adding to 1324232220 its reverse (222324231), we get a palindrome (1546556451).

The spelling of 1324232220 in words is "one billion, three hundred twenty-four million, two hundred thirty-two thousand, two hundred twenty".