1320310432 has 48 divisors (see below), whose sum is σ = 2989006272. Its totient is φ = 562360320.

The previous prime is 1320310427. The next prime is 1320310477. The reversal of 1320310432 is 2340130231.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18432 + ... + 54592.

It is an arithmetic number, because the mean of its divisors is an integer number (62270964).

Almost surely, 2^1320310432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1320310432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1494503136).

1320310432 is an abundant number, since it is smaller than the sum of its proper divisors (1668695840).

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

1320310432 is a wasteful number, since it uses less digits than its factorization.

1320310432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36341 (or 36333 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1320310432 is about 36336.0761778153. The cubic root of 1320310432 is about 1097.0472966487.

Adding to 1320310432 its reverse (2340130231), we get a palindrome (3660440663).

It can be divided in two parts, 13203 and 10432, that multiplied together give a square (137733696 = 11736²).

The spelling of 1320310432 in words is "one billion, three hundred twenty million, three hundred ten thousand, four hundred thirty-two".