73233980 has 36 divisors (see below), whose sum is σ = 162255240. Its totient is φ = 27688608.

The previous prime is 73233967. The next prime is 73233991. The reversal of 73233980 is 8933237.

It is a self number, because there is not a number n which added to its sum of digits gives 73233980.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 166601 + ... + 167039.

It is an arithmetic number, because the mean of its divisors is an integer number (4507090).

Almost surely, 2^73233980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73233980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81127620).

73233980 is an abundant number, since it is smaller than the sum of its proper divisors (89021260).

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

73233980 is a wasteful number, since it uses less digits than its factorization.

73233980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906 (or 465 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 73233980 is about 8557.6854347423. The cubic root of 73233980 is about 418.3799647847.

The spelling of 73233980 in words is "seventy-three million, two hundred thirty-three thousand, nine hundred eighty".