730718020 has 24 divisors (see below), whose sum is σ = 1539980568. Its totient is φ = 291244800.

The previous prime is 730718011. The next prime is 730718029. The reversal of 730718020 is 20817037.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (730718011) and next prime (730718029).

It can be written as a sum of positive squares in 4 ways, for example, as 4631104 + 726086916 = 2152^2 + 26946^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 730718020.

It is not an unprimeable number, because it can be changed into a prime (730718029) 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 7 ways as a sum of consecutive naturals, for example, 59391 + ... + 70630.

It is an arithmetic number, because the mean of its divisors is an integer number (64165857).

Almost surely, 2^730718020 is an apocalyptic number.

It is an amenable number.

730718020 is an abundant number, since it is smaller than the sum of its proper divisors (809262548).

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

730718020 is a wasteful number, since it uses less digits than its factorization.

730718020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130311 (or 130309 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 730718020 is about 27031.7964626845. The cubic root of 730718020 is about 900.7064494470.

The spelling of 730718020 in words is "seven hundred thirty million, seven hundred eighteen thousand, twenty".