73228872 has 32 divisors (see below), whose sum is σ = 191033280. Its totient is φ = 23348160.

The previous prime is 73228817. The next prime is 73228873. The reversal of 73228872 is 27882237.

It is a self number, because there is not a number n which added to its sum of digits gives 73228872.

It is not an unprimeable number, because it can be changed into a prime (73228873) 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 7 ways as a sum of consecutive naturals, for example, 65779 + ... + 66882.

It is an arithmetic number, because the mean of its divisors is an integer number (5969790).

Almost surely, 2^73228872 is an apocalyptic number.

It is an amenable number.

73228872 is an abundant number, since it is smaller than the sum of its proper divisors (117804408).

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

73228872 is a wasteful number, since it uses less digits than its factorization.

73228872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132693 (or 132689 counting only the distinct ones).

The product of its digits is 75264, while the sum is 39.

The square root of 73228872 is about 8557.3869843545. The cubic root of 73228872 is about 418.3702373578.

The spelling of 73228872 in words is "seventy-three million, two hundred twenty-eight thousand, eight hundred seventy-two".