1260728879 has 8 divisors (see below), whose sum is σ = 1274870400. Its totient is φ = 1246665816.

The previous prime is 1260728851. The next prime is 1260728899. The reversal of 1260728879 is 9788270621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1260728879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1260728849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13004 + ... + 51870.

It is an arithmetic number, because the mean of its divisors is an integer number (159358800).

Almost surely, 2^1260728879 is an apocalyptic number.

1260728879 is a deficient number, since it is larger than the sum of its proper divisors (14141521).

1260728879 is a wasteful number, since it uses less digits than its factorization.

1260728879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39229.

The product of its (nonzero) digits is 677376, while the sum is 50.

The square root of 1260728879 is about 35506.7441340374. The cubic root of 1260728879 is about 1080.2905251211.

The spelling of 1260728879 in words is "one billion, two hundred sixty million, seven hundred twenty-eight thousand, eight hundred seventy-nine".