80528838 has 64 divisors (see below), whose sum is σ = 179928000. Its totient is φ = 24011520.

The previous prime is 80528837. The next prime is 80528849. The reversal of 80528838 is 83882508.

It is a self number, because there is not a number n which added to its sum of digits gives 80528838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80528837) 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, 540388 + ... + 540536.

It is an arithmetic number, because the mean of its divisors is an integer number (2811375).

Almost surely, 2^80528838 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80528838, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89964000).

80528838 is an abundant number, since it is smaller than the sum of its proper divisors (99399162).

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

80528838 is a wasteful number, since it uses less digits than its factorization.

80528838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 42.

The square root of 80528838 is about 8973.7861574700. The cubic root of 80528838 is about 431.8343093152.

The spelling of 80528838 in words is "eighty million, five hundred twenty-eight thousand, eight hundred thirty-eight".