1296670260 has 24 divisors (see below), whose sum is σ = 3630676896. Its totient is φ = 345778720.

The previous prime is 1296670237. The next prime is 1296670273. The reversal of 1296670260 is 620766921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10805526 + ... + 10805645.

It is an arithmetic number, because the mean of its divisors is an integer number (151278204).

Almost surely, 2^1296670260 is an apocalyptic number.

1296670260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1296670260 is an abundant number, since it is smaller than the sum of its proper divisors (2334006636).

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

1296670260 is a wasteful number, since it uses less digits than its factorization.

1296670260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21611183 (or 21611181 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 1296670260 is about 36009.3079633586. The cubic root of 1296670260 is about 1090.4602775118.

The spelling of 1296670260 in words is "one billion, two hundred ninety-six million, six hundred seventy thousand, two hundred sixty".