1260280885 has 16 divisors (see below), whose sum is σ = 1535466240. Its totient is φ = 992839680.

The previous prime is 1260280843. The next prime is 1260280897. The reversal of 1260280885 is 5880820621.

It is a happy number.

It is not a de Polignac number, because 1260280885 - 2⁷ = 1260280757 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 407776 + ... + 410854.

It is an arithmetic number, because the mean of its divisors is an integer number (95966640).

Almost surely, 2^1260280885 is an apocalyptic number.

It is an amenable number.

1260280885 is a deficient number, since it is larger than the sum of its proper divisors (275185355).

1260280885 is a wasteful number, since it uses less digits than its factorization.

1260280885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4308.

The product of its (nonzero) digits is 61440, while the sum is 40.

The square root of 1260280885 is about 35500.4349973349. The cubic root of 1260280885 is about 1080.1625512647.

The spelling of 1260280885 in words is "one billion, two hundred sixty million, two hundred eighty thousand, eight hundred eighty-five".