730319070 has 64 divisors (see below), whose sum is σ = 1891116864. Its totient is φ = 179435520.

The previous prime is 730319059. The next prime is 730319071. The reversal of 730319070 is 70913037.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730319071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 256374 + ... + 259206.

It is an arithmetic number, because the mean of its divisors is an integer number (29548701).

Almost surely, 2^730319070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 730319070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (945558432).

730319070 is an abundant number, since it is smaller than the sum of its proper divisors (1160797794).

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

730319070 is a wasteful number, since it uses less digits than its factorization.

730319070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3517.

The product of its (nonzero) digits is 3969, while the sum is 30.

The square root of 730319070 is about 27024.4161824081. The cubic root of 730319070 is about 900.5425000877.

The spelling of 730319070 in words is "seven hundred thirty million, three hundred nineteen thousand, seventy".