1825856 has 28 divisors (see below), whose sum is σ = 3706368. Its totient is φ = 892032.

The previous prime is 1825829. The next prime is 1825861. The reversal of 1825856 is 6585281.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2705 + ... + 3311.

2^1825856 is an apocalyptic number.

1825856 is a gapful number since it is divisible by the number (16) 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 1825856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1853184).

1825856 is an abundant number, since it is smaller than the sum of its proper divisors (1880512).

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

1825856 is an equidigital number, since it uses as much as digits as its factorization.

1825856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666 (or 656 counting only the distinct ones).

The product of its digits is 19200, while the sum is 35.

The square root of 1825856 is about 1351.2423912829. The cubic root of 1825856 is about 122.2237227854.

The spelling of 1825856 in words is "one million, eight hundred twenty-five thousand, eight hundred fifty-six".