1256928 has 24 divisors (see below), whose sum is σ = 3299688. Its totient is φ = 418944.

The previous prime is 1256923. The next prime is 1256939. The reversal of 1256928 is 8296521.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1256923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6451 + ... + 6642.

It is an arithmetic number, because the mean of its divisors is an integer number (137487).

2^1256928 is an apocalyptic number.

It is an amenable number.

1256928 is an abundant number, since it is smaller than the sum of its proper divisors (2042760).

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

1256928 is a wasteful number, since it uses less digits than its factorization.

1256928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13106 (or 13098 counting only the distinct ones).

The product of its digits is 8640, while the sum is 33.

The square root of 1256928 is about 1121.1280033966. The cubic root of 1256928 is about 107.9203802747.

The spelling of 1256928 in words is "one million, two hundred fifty-six thousand, nine hundred twenty-eight".