727540420 has 12 divisors (see below), whose sum is σ = 1527834924. Its totient is φ = 291016160.

The previous prime is 727540417. The next prime is 727540423. The reversal of 727540420 is 24045727.

727540420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (727540417) and next prime (727540423).

It can be written as a sum of positive squares in 2 ways, for example, as 78004224 + 649536196 = 8832^2 + 25486^2 .

It is not an unprimeable number, because it can be changed into a prime (727540423) 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, 18188491 + ... + 18188530.

It is an arithmetic number, because the mean of its divisors is an integer number (127319577).

Almost surely, 2^727540420 is an apocalyptic number.

It is an amenable number.

727540420 is an abundant number, since it is smaller than the sum of its proper divisors (800294504).

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

727540420 is a wasteful number, since it uses less digits than its factorization.

727540420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36377030 (or 36377028 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 727540420 is about 26972.9571979047. The cubic root of 727540420 is about 899.3989484803.

The spelling of 727540420 in words is "seven hundred twenty-seven million, five hundred forty thousand, four hundred twenty".