1255744 has 28 divisors (see below), whose sum is σ = 2848864. Its totient is φ = 537984.

The previous prime is 1255721. The next prime is 1255747. The reversal of 1255744 is 4475521.

It is a tau number, because it is divible by the number of its divisors (28).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255747) by changing a digit.

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, 954 + ... + 1849.

2^1255744 is an apocalyptic number.

1255744 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1255744 is an abundant number, since it is smaller than the sum of its proper divisors (1593120).

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

1255744 is an equidigital number, since it uses as much as digits as its factorization.

1255744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2822 (or 2812 counting only the distinct ones).

The product of its digits is 5600, while the sum is 28.

The square root of 1255744 is about 1120.5998393718. The cubic root of 1255744 is about 107.8864833788.

The spelling of 1255744 in words is "one million, two hundred fifty-five thousand, seven hundred forty-four".