1260889 has 16 divisors (see below), whose sum is σ = 1520640. Its totient is φ = 1023120.

The previous prime is 1260887. The next prime is 1260893. The reversal of 1260889 is 9880621.

It is not a de Polignac number, because 1260889 - 2¹ = 1260887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1260881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17724 + ... + 17794.

It is an arithmetic number, because the mean of its divisors is an integer number (95040).

2^1260889 is an apocalyptic number.

It is an amenable number.

1260889 is a deficient number, since it is larger than the sum of its proper divisors (259751).

1260889 is an equidigital number, since it uses as much as digits as its factorization.

1260889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 1260889 is about 1122.8931382816. The cubic root of 1260889 is about 108.0336257892.

The spelling of 1260889 in words is "one million, two hundred sixty thousand, eight hundred eighty-nine".