73531260 has 96 divisors (see below), whose sum is σ = 249580800. Its totient is φ = 17824320.

The previous prime is 73531229. The next prime is 73531261. The reversal of 73531260 is 6213537.

It is a happy number.

73531260 is a `hidden beast` number, since 73 + 531 + 2 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73531261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 250 + ... + 12129.

It is an arithmetic number, because the mean of its divisors is an integer number (2599800).

Almost surely, 2^73531260 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 73531260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124790400).

73531260 is an abundant number, since it is smaller than the sum of its proper divisors (176049540).

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

73531260 is a wasteful number, since it uses less digits than its factorization.

73531260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12408 (or 12400 counting only the distinct ones).

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

The square root of 73531260 is about 8575.0370261591. The cubic root of 73531260 is about 418.9453129129.

Adding to 73531260 its reverse (6213537), we get a palindrome (79744797).

The spelling of 73531260 in words is "seventy-three million, five hundred thirty-one thousand, two hundred sixty".