1256544 has 36 divisors (see below), whose sum is σ = 3574116. Its totient is φ = 418752.

The previous prime is 1256543. The next prime is 1256573. The reversal of 1256544 is 4456521.

1256544 is a `hidden beast` number, since 1 + 2 + 5 + 654 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1256543) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1894 + ... + 2469.

It is an arithmetic number, because the mean of its divisors is an integer number (99281).

2^1256544 is an apocalyptic number.

It is an amenable number.

1256544 is an abundant number, since it is smaller than the sum of its proper divisors (2317572).

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

1256544 is a wasteful number, since it uses less digits than its factorization.

1256544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4379 (or 4368 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 1256544 is about 1120.9567342230. The cubic root of 1256544 is about 107.9093890201.

The spelling of 1256544 in words is "one million, two hundred fifty-six thousand, five hundred forty-four".