1260328856 has 8 divisors (see below), whose sum is σ = 2363116620. Its totient is φ = 630164424.

The previous prime is 1260328837. The next prime is 1260328871. The reversal of 1260328856 is 6588230621.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78770546 + ... + 78770561.

Almost surely, 2^1260328856 is an apocalyptic number.

It is an amenable number.

1260328856 is a deficient number, since it is larger than the sum of its proper divisors (1102787764).

1260328856 is a wasteful number, since it uses less digits than its factorization.

1260328856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157541113 (or 157541109 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 1260328856 is about 35501.1106305141. The cubic root of 1260328856 is about 1080.1762560985.

The spelling of 1260328856 in words is "one billion, two hundred sixty million, three hundred twenty-eight thousand, eight hundred fifty-six".