727021140 has 144 divisors (see below), whose sum is σ = 2144403072. Its totient is φ = 183965184.

The previous prime is 727021123. The next prime is 727021147. The reversal of 727021140 is 41120727.

It is a self number, because there is not a number n which added to its sum of digits gives 727021140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (727021147) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4353337 + ... + 4353503.

It is an arithmetic number, because the mean of its divisors is an integer number (14891688).

Almost surely, 2^727021140 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 727021140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1072201536).

727021140 is an abundant number, since it is smaller than the sum of its proper divisors (1417381932).

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

727021140 is a wasteful number, since it uses less digits than its factorization.

727021140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 727021140 is about 26963.3295421764. The cubic root of 727021140 is about 899.1849163646.

Adding to 727021140 its reverse (41120727), we get a palindrome (768141867).

The spelling of 727021140 in words is "seven hundred twenty-seven million, twenty-one thousand, one hundred forty".