1725824 has 32 divisors (see below), whose sum is σ = 3498600. Its totient is φ = 847872.

The previous prime is 1725821. The next prime is 1725833. The reversal of 1725824 is 4285271.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1725821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12347 + ... + 12485.

2^1725824 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 1725824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1749300).

1725824 is an abundant number, since it is smaller than the sum of its proper divisors (1772776).

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

1725824 is an equidigital number, since it uses as much as digits as its factorization.

1725824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 238 counting only the distinct ones).

The product of its digits is 4480, while the sum is 29.

The square root of 1725824 is about 1313.7062076431. The cubic root of 1725824 is about 119.9496084717.

Subtracting from 1725824 its product of digits (4480), we obtain a square (1721344 = 1312²).

The spelling of 1725824 in words is "one million, seven hundred twenty-five thousand, eight hundred twenty-four".