80540928 has 108 divisors (see below), whose sum is σ = 250175380. Its totient is φ = 24772608.

The previous prime is 80540899. The next prime is 80540969. The reversal of 80540928 is 82904508.

It can be written as a sum of positive squares in 2 ways, for example, as 6718464 + 73822464 = 2592^2 + 8592^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 80540892 and 80540901.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28608 + ... + 31296.

Almost surely, 2^80540928 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 80540928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125087690).

80540928 is an abundant number, since it is smaller than the sum of its proper divisors (169634452).

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

80540928 is a wasteful number, since it uses less digits than its factorization.

80540928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2724 (or 2707 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 80540928 is about 8974.4597608993. The cubic root of 80540928 is about 431.8559190295.

The spelling of 80540928 in words is "eighty million, five hundred forty thousand, nine hundred twenty-eight".