730817312 has 48 divisors (see below), whose sum is σ = 1490130432. Its totient is φ = 352450560.

The previous prime is 730817291. The next prime is 730817327. The reversal of 730817312 is 213718037.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349133 + ... + 351219.

It is an arithmetic number, because the mean of its divisors is an integer number (31044384).

Almost surely, 2^730817312 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 730817312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (745065216).

730817312 is an abundant number, since it is smaller than the sum of its proper divisors (759313120).

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

730817312 is a wasteful number, since it uses less digits than its factorization.

730817312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2481 (or 2473 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 730817312 is about 27033.6329781996. The cubic root of 730817312 is about 900.7472444330.

The spelling of 730817312 in words is "seven hundred thirty million, eight hundred seventeen thousand, three hundred twelve".