1320247276 has 12 divisors (see below), whose sum is σ = 2311067808. Its totient is φ = 659942192.

The previous prime is 1320247259. The next prime is 1320247303. The reversal of 1320247276 is 6727420231.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28276 + ... + 58651.

It is an arithmetic number, because the mean of its divisors is an integer number (192588984).

Almost surely, 2^1320247276 is an apocalyptic number.

It is an amenable number.

1320247276 is a deficient number, since it is larger than the sum of its proper divisors (990820532).

1320247276 is a wasteful number, since it uses less digits than its factorization.

1320247276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90728 (or 90726 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 1320247276 is about 36335.2071137623. The cubic root of 1320247276 is about 1097.0298042413.

The spelling of 1320247276 in words is "one billion, three hundred twenty million, two hundred forty-seven thousand, two hundred seventy-six".