1255844 has 6 divisors (see below), whose sum is σ = 2197734. Its totient is φ = 627920.

The previous prime is 1255831. The next prime is 1255847. The reversal of 1255844 is 4485521.

It can be written as a sum of positive squares in only one way, i.e., 1254400 + 1444 = 1120^2 + 38^2 .

It is not an unprimeable number, because it can be changed into a prime (1255847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156977 + ... + 156984.

It is an arithmetic number, because the mean of its divisors is an integer number (366289).

2^1255844 is an apocalyptic number.

It is an amenable number.

1255844 is a deficient number, since it is larger than the sum of its proper divisors (941890).

1255844 is a wasteful number, since it uses less digits than its factorization.

1255844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313965 (or 313963 counting only the distinct ones).

The product of its digits is 6400, while the sum is 29.

The square root of 1255844 is about 1120.6444574440. The cubic root of 1255844 is about 107.8893471159.

The spelling of 1255844 in words is "one million, two hundred fifty-five thousand, eight hundred forty-four".