1260980280 has 96 divisors (see below), whose sum is σ = 4683650400. Its totient is φ = 288223488.

The previous prime is 1260980269. The next prime is 1260980317. The reversal of 1260980280 is 820890621.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 247675 + ... + 252714.

It is an arithmetic number, because the mean of its divisors is an integer number (48788025).

Almost surely, 2^1260980280 is an apocalyptic number.

1260980280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1260980280 is an abundant number, since it is smaller than the sum of its proper divisors (3422670120).

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

1260980280 is a wasteful number, since it uses less digits than its factorization.

1260980280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500413 (or 500406 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 1260980280 is about 35510.2841441743. The cubic root of 1260980280 is about 1080.3623269897.

The spelling of 1260980280 in words is "one billion, two hundred sixty million, nine hundred eighty thousand, two hundred eighty".