73541320 has 64 divisors (see below), whose sum is σ = 177448320. Its totient is φ = 27331584.

The previous prime is 73541287. The next prime is 73541329. The reversal of 73541320 is 2314537.

It is not an unprimeable number, because it can be changed into a prime (73541329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55789 + ... + 57091.

It is an arithmetic number, because the mean of its divisors is an integer number (2772630).

Almost surely, 2^73541320 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 73541320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88724160).

73541320 is an abundant number, since it is smaller than the sum of its proper divisors (103907000).

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

73541320 is a wasteful number, since it uses less digits than its factorization.

73541320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1414 (or 1410 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 73541320 is about 8575.6235924859. The cubic root of 73541320 is about 418.9644177020.

Adding to 73541320 its reverse (2314537), we get a palindrome (75855857).

The spelling of 73541320 in words is "seventy-three million, five hundred forty-one thousand, three hundred twenty".