73209480 has 96 divisors (see below), whose sum is σ = 233418240. Its totient is φ = 18365440.

The previous prime is 73209473. The next prime is 73209491. The reversal of 73209480 is 8490237.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 33625 + ... + 35735.

It is an arithmetic number, because the mean of its divisors is an integer number (2431440).

Almost surely, 2^73209480 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 73209480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116709120).

73209480 is an abundant number, since it is smaller than the sum of its proper divisors (160208760).

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

73209480 is a wasteful number, since it uses less digits than its factorization.

73209480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2159 (or 2138 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 73209480 is about 8556.2538531766. The cubic root of 73209480 is about 418.3333040569. Note that the first 4 decimals are identical.

The spelling of 73209480 in words is "seventy-three million, two hundred nine thousand, four hundred eighty".