1260798560 has 48 divisors (see below), whose sum is σ = 3404159136. Its totient is φ = 432273408.

The previous prime is 1260798499. The next prime is 1260798601. The reversal of 1260798560 is 658970621.

It is a super-2 number, since 2×1260798560² = 3179226017796147200, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 561737 + ... + 563976.

It is an arithmetic number, because the mean of its divisors is an integer number (70919982).

Almost surely, 2^1260798560 is an apocalyptic number.

1260798560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1260798560 is an abundant number, since it is smaller than the sum of its proper divisors (2143360576).

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

1260798560 is a wasteful number, since it uses less digits than its factorization.

1260798560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1125735 (or 1125727 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 1260798560 is about 35507.7253566037. The cubic root of 1260798560 is about 1080.3104274539.

The spelling of 1260798560 in words is "one billion, two hundred sixty million, seven hundred ninety-eight thousand, five hundred sixty".