1260055820 has 12 divisors (see below), whose sum is σ = 2646117264. Its totient is φ = 504022320.

The previous prime is 1260055817. The next prime is 1260055871. The reversal of 1260055820 is 285500621.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31501376 + ... + 31501415.

It is an arithmetic number, because the mean of its divisors is an integer number (220509772).

Almost surely, 2^1260055820 is an apocalyptic number.

1260055820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1260055820 is an abundant number, since it is smaller than the sum of its proper divisors (1386061444).

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

1260055820 is a wasteful number, since it uses less digits than its factorization.

1260055820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63002800 (or 63002798 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 1260055820 is about 35497.2649650646. The cubic root of 1260055820 is about 1080.0982478065.

The spelling of 1260055820 in words is "one billion, two hundred sixty million, fifty-five thousand, eight hundred twenty".