28541776 has 20 divisors (see below), whose sum is σ = 58553172. Its totient is φ = 13431296.

The previous prime is 28541767. The next prime is 28541783. The reversal of 28541776 is 67714582.

It can be written as a sum of positive squares in 2 ways, for example, as 18147600 + 10394176 = 4260^2 + 3224^2 .

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 3 ways as a sum of consecutive naturals, for example, 52195 + ... + 52738.

Almost surely, 2^28541776 is an apocalyptic number.

It is an amenable number.

28541776 is an abundant number, since it is smaller than the sum of its proper divisors (30011396).

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

28541776 is a wasteful number, since it uses less digits than its factorization.

28541776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104958 (or 104952 counting only the distinct ones).

The product of its digits is 94080, while the sum is 40.

The square root of 28541776 is about 5342.4503741261. The cubic root of 28541776 is about 305.6049125239.

The spelling of 28541776 in words is "twenty-eight million, five hundred forty-one thousand, seven hundred seventy-six".