28080478 has 16 divisors (see below), whose sum is σ = 42771456. Its totient is φ = 13825080.

The previous prime is 28080473. The next prime is 28080511. The reversal of 28080478 is 87408082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28080473) 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, 55575 + ... + 56077.

It is an arithmetic number, because the mean of its divisors is an integer number (2673216).

Almost surely, 2^28080478 is an apocalyptic number.

28080478 is a deficient number, since it is larger than the sum of its proper divisors (14690978).

28080478 is a wasteful number, since it uses less digits than its factorization.

28080478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879.

The product of its (nonzero) digits is 28672, while the sum is 37.

The square root of 28080478 is about 5299.1016219733. The cubic root of 28080478 is about 303.9495458164.

The spelling of 28080478 in words is "twenty-eight million, eighty thousand, four hundred seventy-eight".