73022820 has 96 divisors (see below), whose sum is σ = 233186688. Its totient is φ = 16914432.

The previous prime is 73022801. The next prime is 73022827. The reversal of 73022820 is 2822037.

It is not an unprimeable number, because it can be changed into a prime (73022827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10507 + ... + 16013.

It is an arithmetic number, because the mean of its divisors is an integer number (2429028).

Almost surely, 2^73022820 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 73022820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116593344).

73022820 is an abundant number, since it is smaller than the sum of its proper divisors (160163868).

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

73022820 is a wasteful number, since it uses less digits than its factorization.

73022820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5549 (or 5547 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 73022820 is about 8545.3390804578. The cubic root of 73022820 is about 417.9774641972.

Adding to 73022820 its reverse (2822037), we get a palindrome (75844857).

The spelling of 73022820 in words is "seventy-three million, twenty-two thousand, eight hundred twenty".