73240524 has 120 divisors (see below), whose sum is σ = 224204288. Its totient is φ = 20412000.

The previous prime is 73240511. The next prime is 73240549. The reversal of 73240524 is 42504237.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 97149 + ... + 97899.

Almost surely, 2^73240524 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 73240524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112102144).

73240524 is an abundant number, since it is smaller than the sum of its proper divisors (150963764).

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

73240524 is a wasteful number, since it uses less digits than its factorization.

73240524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817 (or 806 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 73240524 is about 8558.0677725758. The cubic root of 73240524 is about 418.3924261992.

The spelling of 73240524 in words is "seventy-three million, two hundred forty thousand, five hundred twenty-four".