1320481240 has 32 divisors (see below), whose sum is σ = 3199628880. Its totient is φ = 487562112.

The previous prime is 1320481229. The next prime is 1320481243. The reversal of 1320481240 is 421840231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320481243) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1269174 + ... + 1270213.

Almost surely, 2^1320481240 is an apocalyptic number.

1320481240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320481240 is an abundant number, since it is smaller than the sum of its proper divisors (1879147640).

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

1320481240 is a wasteful number, since it uses less digits than its factorization.

1320481240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2539411 (or 2539407 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 1320481240 is about 36338.4264931766. The cubic root of 1320481240 is about 1097.0946027897.

The spelling of 1320481240 in words is "one billion, three hundred twenty million, four hundred eighty-one thousand, two hundred forty".