730218132 has 96 divisors (see below), whose sum is σ = 2209751040. Its totient is φ = 204184800.

The previous prime is 730218103. The next prime is 730218133. The reversal of 730218132 is 231812037.

730218132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 730218096 and 730218105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730218133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25257 + ... + 45807.

It is an arithmetic number, because the mean of its divisors is an integer number (23018240).

Almost surely, 2^730218132 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 730218132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1104875520).

730218132 is an abundant number, since it is smaller than the sum of its proper divisors (1479532908).

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

730218132 is a wasteful number, since it uses less digits than its factorization.

730218132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20618 (or 20610 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 730218132 is about 27022.5485844692. The cubic root of 730218132 is about 900.5010099361.

The spelling of 730218132 in words is "seven hundred thirty million, two hundred eighteen thousand, one hundred thirty-two".