727040 has 48 divisors (see below), whose sum is σ = 1769040. Its totient is φ = 286720.

The previous prime is 727021. The next prime is 727049. The reversal of 727040 is 40727.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (727049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10205 + ... + 10275.

It is an arithmetic number, because the mean of its divisors is an integer number (36855).

2⁷²⁷⁰⁴⁰ 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 727040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (884520).

727040 is an abundant number, since it is smaller than the sum of its proper divisors (1042000).

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

727040 is an equidigital number, since it uses as much as digits as its factorization.

727040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 20.

The square root of 727040 is about 852.6664060464. Note that the first 3 decimals coincide. The cubic root of 727040 is about 89.9192691691.

Adding to 727040 its reverse (40727), we get a palindrome (767767).

The spelling of 727040 in words is "seven hundred twenty-seven thousand, forty", and thus it is an iban number.