73230020 has 12 divisors (see below), whose sum is σ = 153783084. Its totient is φ = 29292000.

The previous prime is 73230007. The next prime is 73230037. The reversal of 73230020 is 2003237.

It can be written as a sum of positive squares in 2 ways, for example, as 48469444 + 24760576 = 6962^2 + 4976^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1830731 + ... + 1830770.

It is an arithmetic number, because the mean of its divisors is an integer number (12815257).

Almost surely, 2^73230020 is an apocalyptic number.

It is an amenable number.

73230020 is an abundant number, since it is smaller than the sum of its proper divisors (80553064).

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

73230020 is a wasteful number, since it uses less digits than its factorization.

73230020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3661510 (or 3661508 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 17.

The square root of 73230020 is about 8557.4540606421. The cubic root of 73230020 is about 418.3724235926.

Adding to 73230020 its reverse (2003237), we get a palindrome (75233257).

The spelling of 73230020 in words is "seventy-three million, two hundred thirty thousand, twenty".