730502928 has 80 divisors (see below), whose sum is σ = 2100044160. Its totient is φ = 243126144.

The previous prime is 730502921. The next prime is 730502933. The reversal of 730502928 is 829205037.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 730502892 and 730502901.

It is not an unprimeable number, because it can be changed into a prime (730502921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 533701 + ... + 535067.

It is an arithmetic number, because the mean of its divisors is an integer number (26250552).

Almost surely, 2^730502928 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 730502928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1050022080).

730502928 is an abundant number, since it is smaller than the sum of its proper divisors (1369541232).

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

730502928 is a wasteful number, since it uses less digits than its factorization.

730502928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2621 (or 2609 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 730502928 is about 27027.8176699489. The cubic root of 730502928 is about 900.6180643434.

The spelling of 730502928 in words is "seven hundred thirty million, five hundred two thousand, nine hundred twenty-eight".