73522020 has 288 divisors, whose sum is σ = 262765440. Its totient is φ = 15206400.

The previous prime is 73522003. The next prime is 73522021. The reversal of 73522020 is 2022537.

It is not an unprimeable number, because it can be changed into a prime (73522021) 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 95 ways as a sum of consecutive naturals, for example, 1793200 + ... + 1793240.

It is an arithmetic number, because the mean of its divisors is an integer number (912380).

Almost surely, 2^73522020 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 73522020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131382720).

73522020 is an abundant number, since it is smaller than the sum of its proper divisors (189243420).

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

73522020 is a wasteful number, since it uses less digits than its factorization.

73522020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 73522020 is about 8574.4982360486. The cubic root of 73522020 is about 418.9277638376.

Adding to 73522020 its reverse (2022537), we get a palindrome (75544557).

The spelling of 73522020 in words is "seventy-three million, five hundred twenty-two thousand, twenty".