730222288 has 40 divisors (see below), whose sum is σ = 1495598720. Its totient is φ = 344424960.

The previous prime is 730222271. The next prime is 730222303. The reversal of 730222288 is 882222037.

It is a congruent number.

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, 68281 + ... + 78247.

It is an arithmetic number, because the mean of its divisors is an integer number (37389968).

Almost surely, 2^730222288 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 730222288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (747799360).

730222288 is an abundant number, since it is smaller than the sum of its proper divisors (765376432).

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

730222288 is a wasteful number, since it uses less digits than its factorization.

730222288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10235 (or 10229 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 730222288 is about 27022.6254831021. The cubic root of 730222288 is about 900.5027183183.

The spelling of 730222288 in words is "seven hundred thirty million, two hundred twenty-two thousand, two hundred eighty-eight".