1260686368 has 24 divisors (see below), whose sum is σ = 2542514940. Its totient is φ = 614968320.

The previous prime is 1260686359. The next prime is 1260686369. The reversal of 1260686368 is 8636860621.

It can be written as a sum of positive squares in 2 ways, for example, as 980190864 + 280495504 = 31308^2 + 16748^2 .

It is a super-2 number, since 2×1260686368² = 3178660236922062848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1260686369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 479133 + ... + 481756.

Almost surely, 2^1260686368 is an apocalyptic number.

It is an amenable number.

1260686368 is an abundant number, since it is smaller than the sum of its proper divisors (1281828572).

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

1260686368 is an equidigital number, since it uses as much as digits as its factorization.

1260686368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960940 (or 960932 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 46.

The square root of 1260686368 is about 35506.1454962377. The cubic root of 1260686368 is about 1080.2783827413.

The spelling of 1260686368 in words is "one billion, two hundred sixty million, six hundred eighty-six thousand, three hundred sixty-eight".