730218384 has 180 divisors, whose sum is σ = 2442368604. Its totient is φ = 202922496.

The previous prime is 730218331. The next prime is 730218407. The reversal of 730218384 is 483812037.

730218384 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 601622784 + 128595600 = 24528^2 + 11340^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 259674 + ... + 262470.

Almost surely, 2^730218384 is an apocalyptic number.

730218384 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 730218384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1221184302).

730218384 is an abundant number, since it is smaller than the sum of its proper divisors (1712150220).

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

730218384 is a wasteful number, since it uses less digits than its factorization.

730218384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2862 (or 2846 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 730218384 is about 27022.5532472415. The cubic root of 730218384 is about 900.5011135244.

The spelling of 730218384 in words is "seven hundred thirty million, two hundred eighteen thousand, three hundred eighty-four".