1320560416 has 24 divisors (see below), whose sum is σ = 2971261440. Its totient is φ = 565954368.

The previous prime is 1320560393. The next prime is 1320560471. The reversal of 1320560416 is 6140650231.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2947456 + ... + 2947903.

It is an arithmetic number, because the mean of its divisors is an integer number (123802560).

Almost surely, 2^1320560416 is an apocalyptic number.

1320560416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1320560416 is an abundant number, since it is smaller than the sum of its proper divisors (1650701024).

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

1320560416 is an equidigital number, since it uses as much as digits as its factorization.

1320560416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5895376 (or 5895368 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 1320560416 is about 36339.5159021141. The cubic root of 1320560416 is about 1097.1165296003.

The spelling of 1320560416 in words is "one billion, three hundred twenty million, five hundred sixty thousand, four hundred sixteen".