1320256032 has 24 divisors (see below), whose sum is σ = 3465672336. Its totient is φ = 440085312.

The previous prime is 1320256019. The next prime is 1320256033. The reversal of 1320256032 is 2306520231.

It is a tau number, because it is divible by the number of its divisors (24).

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

It is a junction number, because it is equal to n+sod(n) for n = 1320255993 and 1320256011.

It is not an unprimeable number, because it can be changed into a prime (1320256033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6876238 + ... + 6876429.

It is an arithmetic number, because the mean of its divisors is an integer number (144403014).

Almost surely, 2^1320256032 is an apocalyptic number.

1320256032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1320256032 is an abundant number, since it is smaller than the sum of its proper divisors (2145416304).

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

1320256032 is a wasteful number, since it uses less digits than its factorization.

1320256032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13752680 (or 13752672 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 1320256032 is about 36335.3276027615. The cubic root of 1320256032 is about 1097.0322294364.

Adding to 1320256032 its reverse (2306520231), we get a palindrome (3626776263).

The spelling of 1320256032 in words is "one billion, three hundred twenty million, two hundred fifty-six thousand, thirty-two".