1255824 has 120 divisors (see below), whose sum is σ = 4062240. Its totient is φ = 373248.

The previous prime is 1255811. The next prime is 1255829. The reversal of 1255824 is 4285521.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1255829) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66087 + ... + 66105.

It is an arithmetic number, because the mean of its divisors is an integer number (33852).

2^1255824 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1255824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2031120).

1255824 is an abundant number, since it is smaller than the sum of its proper divisors (2806416).

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

1255824 is a wasteful number, since it uses less digits than its factorization.

1255824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59 (or 41 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 1255824 is about 1120.6355339717. The cubic root of 1255824 is about 107.8887743806. Note that the first 3 decimals are identical.

The spelling of 1255824 in words is "one million, two hundred fifty-five thousand, eight hundred twenty-four".