73521360 has 120 divisors (see below), whose sum is σ = 269384544. Its totient is φ = 17821440.

The previous prime is 73521353. The next prime is 73521391. The reversal of 73521360 is 6312537.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

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, 3279 + ... + 12561.

Almost surely, 2^73521360 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 73521360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134692272).

73521360 is an abundant number, since it is smaller than the sum of its proper divisors (195863184).

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

73521360 is a wasteful number, since it uses less digits than its factorization.

73521360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9313 (or 9304 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 73521360 is about 8574.4597497452. The cubic root of 73521360 is about 418.9265102759.

Adding to 73521360 its reverse (6312537), we get a palindrome (79833897).

The spelling of 73521360 in words is "seventy-three million, five hundred twenty-one thousand, three hundred sixty".