729803740 has 48 divisors (see below), whose sum is σ = 1573764192. Its totient is φ = 284126976.

The previous prime is 729803729. The next prime is 729803741. The reversal of 729803740 is 47308927.

It is a super-2 number, since 2×729803740² = 1065226997835975200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 729803693 and 729803702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729803741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271282 + ... + 273958.

It is an arithmetic number, because the mean of its divisors is an integer number (32786754).

Almost surely, 2^729803740 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 729803740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (786882096).

729803740 is an abundant number, since it is smaller than the sum of its proper divisors (843960452).

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

729803740 is a wasteful number, since it uses less digits than its factorization.

729803740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3046 (or 3044 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 729803740 is about 27014.8799738218. The cubic root of 729803740 is about 900.3306357201.

The spelling of 729803740 in words is "seven hundred twenty-nine million, eight hundred three thousand, seven hundred forty".