1280768052 has 24 divisors (see below), whose sum is σ = 2995997536. Its totient is φ = 425845728.

The previous prime is 1280768051. The next prime is 1280768053. The reversal of 1280768052 is 2508670821.

It is an interprime number because it is at equal distance from previous prime (1280768051) and next prime (1280768053).

It is a self number, because there is not a number n which added to its sum of digits gives 1280768052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1280768051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129658 + ... + 139185.

Almost surely, 2^1280768052 is an apocalyptic number.

1280768052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1280768052 is an abundant number, since it is smaller than the sum of its proper divisors (1715229484).

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

1280768052 is a wasteful number, since it uses less digits than its factorization.

1280768052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269247 (or 269245 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 1280768052 is about 35787.8198833067. The cubic root of 1280768052 is about 1085.9841713283.

The spelling of 1280768052 in words is "one billion, two hundred eighty million, seven hundred sixty-eight thousand, fifty-two".