1320879232 has 16 divisors (see below), whose sum is σ = 2631439350. Its totient is φ = 660439552.

The previous prime is 1320879229. The next prime is 1320879233. The reversal of 1320879232 is 2329780231.

It can be written as a sum of positive squares in only one way, i.e., 821624896 + 499254336 = 28664^2 + 22344^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 1320879191 and 1320879200.

It is not an unprimeable number, because it can be changed into a prime (1320879233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5159557 + ... + 5159812.

Almost surely, 2^1320879232 is an apocalyptic number.

It is an amenable number.

1320879232 is a deficient number, since it is larger than the sum of its proper divisors (1310560118).

1320879232 is an equidigital number, since it uses as much as digits as its factorization.

1320879232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10319383 (or 10319371 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 1320879232 is about 36343.9022670929. The cubic root of 1320879232 is about 1097.2048128662.

The spelling of 1320879232 in words is "one billion, three hundred twenty million, eight hundred seventy-nine thousand, two hundred thirty-two".