73809450 has 288 divisors, whose sum is σ = 246984192. Its totient is φ = 15552000.

The previous prime is 73809409. The next prime is 73809473. The reversal of 73809450 is 5490837.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1994832 + ... + 1994868.

It is an arithmetic number, because the mean of its divisors is an integer number (857584).

Almost surely, 2^73809450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73809450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123492096).

73809450 is an abundant number, since it is smaller than the sum of its proper divisors (173174742).

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

73809450 is a wasteful number, since it uses less digits than its factorization.

73809450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 73809450 is about 8591.2426342177. The cubic root of 73809450 is about 419.4729784187.

The spelling of 73809450 in words is "seventy-three million, eight hundred nine thousand, four hundred fifty".