730747072 has 84 divisors (see below), whose sum is σ = 1605320640. Its totient is φ = 329781760.

The previous prime is 730747063. The next prime is 730747103. The reversal of 730747072 is 270747037.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1525329 + ... + 1525807.

It is an arithmetic number, because the mean of its divisors is an integer number (19110960).

Almost surely, 2^730747072 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 730747072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (802660320).

730747072 is an abundant number, since it is smaller than the sum of its proper divisors (874573568).

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

730747072 is a wasteful number, since it uses less digits than its factorization.

730747072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710 (or 689 counting only the distinct ones).

The product of its (nonzero) digits is 57624, while the sum is 37.

The square root of 730747072 is about 27032.3338245147. Note that the first 3 decimals coincide. The cubic root of 730747072 is about 900.7183860976.

The spelling of 730747072 in words is "seven hundred thirty million, seven hundred forty-seven thousand, seventy-two".