1740728 has 32 divisors (see below), whose sum is σ = 3611520. Its totient is φ = 780000.

The previous prime is 1740721. The next prime is 1740731. The reversal of 1740728 is 8270471.

It is a self number, because there is not a number n which added to its sum of digits gives 1740728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1740721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11453 + ... + 11603.

It is an arithmetic number, because the mean of its divisors is an integer number (112860).

2^1740728 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 1740728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1805760).

1740728 is an abundant number, since it is smaller than the sum of its proper divisors (1870792).

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

1740728 is a wasteful number, since it uses less digits than its factorization.

1740728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 1740728 is about 1319.3665146577. The cubic root of 1740728 is about 120.2939091868.

The spelling of 1740728 in words is "one million, seven hundred forty thousand, seven hundred twenty-eight".