1255044 has 48 divisors (see below), whose sum is σ = 3411968. Its totient is φ = 351648.

The previous prime is 1255039. The next prime is 1255049. The reversal of 1255044 is 4405521.

It is an interprime number because it is at equal distance from previous prime (1255039) and next prime (1255049).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 1255044.

It is not an unprimeable number, because it can be changed into a prime (1255049) 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, 5517 + ... + 5739.

2^1255044 is an apocalyptic number.

1255044 is a gapful number since it is divisible by the number (14) 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 1255044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1705984).

1255044 is an abundant number, since it is smaller than the sum of its proper divisors (2156924).

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

1255044 is a wasteful number, since it uses less digits than its factorization.

1255044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304 (or 302 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 1255044 is about 1120.2874631094. The cubic root of 1255044 is about 107.8664329610.

The spelling of 1255044 in words is "one million, two hundred fifty-five thousand, forty-four".