1256960 has 40 divisors (see below), whose sum is σ = 3019896. Its totient is φ = 501760.

The previous prime is 1256953. The next prime is 1256989. The reversal of 1256960 is 696521.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2315 + ... + 2805.

2^1256960 is an apocalyptic number.

1256960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1256960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1509948).

1256960 is an abundant number, since it is smaller than the sum of its proper divisors (1762936).

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

1256960 is an frugal number, since it uses more digits than its factorization.

1256960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514 (or 498 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 1256960 is about 1121.1422746467. The cubic root of 1256960 is about 107.9212961115.

The spelling of 1256960 in words is "one million, two hundred fifty-six thousand, nine hundred sixty".