73730530 has 32 divisors (see below), whose sum is σ = 142922880. Its totient is φ = 27283200.

The previous prime is 73730519. The next prime is 73730539. The reversal of 73730530 is 3503737.

It is not an unprimeable number, because it can be changed into a prime (73730539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6355 + ... + 13705.

It is an arithmetic number, because the mean of its divisors is an integer number (4466340).

Almost surely, 2^73730530 is an apocalyptic number.

73730530 is a deficient number, since it is larger than the sum of its proper divisors (69192350).

73730530 is a wasteful number, since it uses less digits than its factorization.

73730530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7434.

The product of its (nonzero) digits is 6615, while the sum is 28.

The square root of 73730530 is about 8586.6483566057. The cubic root of 73730530 is about 419.3234193696.

The spelling of 73730530 in words is "seventy-three million, seven hundred thirty thousand, five hundred thirty".