1280470272 has 36 divisors (see below), whose sum is σ = 3407920320. Its totient is φ = 426823168.

The previous prime is 1280470271. The next prime is 1280470309. The reversal of 1280470272 is 2720740821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1280470271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 832872 + ... + 834407.

Almost surely, 2^1280470272 is an apocalyptic number.

1280470272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1280470272 is an abundant number, since it is smaller than the sum of its proper divisors (2127450048).

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

1280470272 is an equidigital number, since it uses as much as digits as its factorization.

1280470272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667298 (or 1667284 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 33.

The square root of 1280470272 is about 35783.6592874457. The cubic root of 1280470272 is about 1085.9000006278.

The spelling of 1280470272 in words is "one billion, two hundred eighty million, four hundred seventy thousand, two hundred seventy-two".