73243680 has 96 divisors (see below), whose sum is σ = 231916608. Its totient is φ = 19430400.

The previous prime is 73243657. The next prime is 73243699. The reversal of 73243680 is 8634237.

It is a tau number, because it is divible by the number of its divisors (96).

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 15 ways as a sum of consecutive naturals, for example, 158650 + ... + 159110.

It is an arithmetic number, because the mean of its divisors is an integer number (2415798).

Almost surely, 2^73243680 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 73243680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115958304).

73243680 is an abundant number, since it is smaller than the sum of its proper divisors (158672928).

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

73243680 is a wasteful number, since it uses less digits than its factorization.

73243680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810 (or 802 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 73243680 is about 8558.2521580052. The cubic root of 73243680 is about 418.3984357481.

The spelling of 73243680 in words is "seventy-three million, two hundred forty-three thousand, six hundred eighty".