1280147704 has 32 divisors (see below), whose sum is σ = 2632227840. Its totient is φ = 578831200.

The previous prime is 1280147663. The next prime is 1280147707. The reversal of 1280147704 is 4077410821.

It is a self number, because there is not a number n which added to its sum of digits gives 1280147704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1280147707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21274 + ... + 54889.

It is an arithmetic number, because the mean of its divisors is an integer number (82257120).

Almost surely, 2^1280147704 is an apocalyptic number.

It is an amenable number.

1280147704 is an abundant number, since it is smaller than the sum of its proper divisors (1352080136).

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

1280147704 is a wasteful number, since it uses less digits than its factorization.

1280147704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76371 (or 76367 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 34.

The square root of 1280147704 is about 35779.1518066038. The cubic root of 1280147704 is about 1085.8088086087.

The spelling of 1280147704 in words is "one billion, two hundred eighty million, one hundred forty-seven thousand, seven hundred four".