1725120 has 84 divisors (see below), whose sum is σ = 5943600. Its totient is φ = 459264.

The previous prime is 1725091. The next prime is 1725121. The reversal of 1725120 is 215271.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1725093 and 1725102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1725121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2581 + ... + 3179.

2^1725120 is an apocalyptic number.

1725120 is a gapful number since it is divisible by the number (10) 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 1725120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2971800).

1725120 is an abundant number, since it is smaller than the sum of its proper divisors (4218480).

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

1725120 is a wasteful number, since it uses less digits than its factorization.

1725120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622 (or 609 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 1725120 is about 1313.4382360812. The cubic root of 1725120 is about 119.9332962620.

It can be divided in two parts, 17251 and 20, that added together give a palindrome (17271).

The spelling of 1725120 in words is "one million, seven hundred twenty-five thousand, one hundred twenty".