73143330 has 32 divisors (see below), whose sum is σ = 189048384. Its totient is φ = 18004416.

The previous prime is 73143319. The next prime is 73143337. The reversal of 73143330 is 3334137.

It is a self number, because there is not a number n which added to its sum of digits gives 73143330.

It is not an unprimeable number, because it can be changed into a prime (73143337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93384 + ... + 94163.

It is an arithmetic number, because the mean of its divisors is an integer number (5907762).

Almost surely, 2^73143330 is an apocalyptic number.

73143330 is an abundant number, since it is smaller than the sum of its proper divisors (115905054).

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

73143330 is a wasteful number, since it uses less digits than its factorization.

73143330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187570.

The product of its (nonzero) digits is 2268, while the sum is 24.

The square root of 73143330 is about 8552.3873859876. The cubic root of 73143330 is about 418.2072680708.

Adding to 73143330 its reverse (3334137), we get a palindrome (76477467).

The spelling of 73143330 in words is "seventy-three million, one hundred forty-three thousand, three hundred thirty".