729016240 has 40 divisors (see below), whose sum is σ = 1696141440. Its totient is φ = 291403776.

The previous prime is 729016199. The next prime is 729016247. The reversal of 729016240 is 42610927.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (729016247) 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, 174496 + ... + 178624.

It is an arithmetic number, because the mean of its divisors is an integer number (42403536).

Almost surely, 2^729016240 is an apocalyptic number.

It is an amenable number.

729016240 is an abundant number, since it is smaller than the sum of its proper divisors (967125200).

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

729016240 is a wasteful number, since it uses less digits than its factorization.

729016240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6349 (or 6343 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 729016240 is about 27000.3007390659. The cubic root of 729016240 is about 900.0066830779.

The spelling of 729016240 in words is "seven hundred twenty-nine million, sixteen thousand, two hundred forty".