1324432320 has 224 divisors, whose sum is σ = 4398995520. Its totient is φ = 337182720.

The previous prime is 1324432309. The next prime is 1324432331. The reversal of 1324432320 is 232344231.

It is an interprime number because it is at equal distance from previous prime (1324432309) and next prime (1324432331).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3145710 + ... + 3146130.

Almost surely, 2^1324432320 is an apocalyptic number.

1324432320 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 1324432320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2199497760).

1324432320 is an abundant number, since it is smaller than the sum of its proper divisors (3074563200).

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

1324432320 is a wasteful number, since it uses less digits than its factorization.

1324432320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583 (or 573 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 1324432320 is about 36392.7509265238. The cubic root of 1324432320 is about 1098.1877376803.

Adding to 1324432320 its reverse (232344231), we get a palindrome (1556776551).

The spelling of 1324432320 in words is "one billion, three hundred twenty-four million, four hundred thirty-two thousand, three hundred twenty".