73303530 has 96 divisors (see below), whose sum is σ = 191116800. Its totient is φ = 17973120.

The previous prime is 73303493. The next prime is 73303537. The reversal of 73303530 is 3530337.

It is a self number, because there is not a number n which added to its sum of digits gives 73303530.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73303537) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 491896 + ... + 492044.

It is an arithmetic number, because the mean of its divisors is an integer number (1990800).

Almost surely, 2^73303530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73303530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95558400).

73303530 is an abundant number, since it is smaller than the sum of its proper divisors (117813270).

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

73303530 is a wasteful number, since it uses less digits than its factorization.

73303530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236 (or 213 counting only the distinct ones).

The product of its (nonzero) digits is 2835, while the sum is 24.

The square root of 73303530 is about 8561.7480691737. The cubic root of 73303530 is about 418.5123674384.

Adding to 73303530 its reverse (3530337), we get a palindrome (76833867).

The spelling of 73303530 in words is "seventy-three million, three hundred three thousand, five hundred thirty".