73122528 has 48 divisors (see below), whose sum is σ = 192810240. Its totient is φ = 24264576.

The previous prime is 73122523. The next prime is 73122551. The reversal of 73122528 is 82522137.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×73122528² = 10693808202221568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 73122495 and 73122504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73122523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21351 + ... + 24537.

It is an arithmetic number, because the mean of its divisors is an integer number (4016880).

Almost surely, 2^73122528 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 73122528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96405120).

73122528 is an abundant number, since it is smaller than the sum of its proper divisors (119687712).

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

73122528 is a wasteful number, since it uses less digits than its factorization.

73122528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3439 (or 3431 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 73122528 is about 8551.1711478604. The cubic root of 73122528 is about 418.1676181923.

The spelling of 73122528 in words is "seventy-three million, one hundred twenty-two thousand, five hundred twenty-eight".