28478176 has 36 divisors (see below), whose sum is σ = 57185352. Its totient is φ = 13959936.

The previous prime is 28478167. The next prime is 28478189. The reversal of 28478176 is 67187482.

It is a super-2 number, since 2×28478176² = 1622013016573952, which contains 22 as substring.

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 5 ways as a sum of consecutive naturals, for example, 170445 + ... + 170611.

It is an arithmetic number, because the mean of its divisors is an integer number (1588482).

Almost surely, 2^28478176 is an apocalyptic number.

It is an amenable number.

28478176 is an abundant number, since it is smaller than the sum of its proper divisors (28707176).

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

28478176 is an equidigital number, since it uses as much as digits as its factorization.

28478176 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323 (or 242 counting only the distinct ones).

The product of its digits is 150528, while the sum is 43.

The square root of 28478176 is about 5336.4947296891. The cubic root of 28478176 is about 305.3777492811.

The spelling of 28478176 in words is "twenty-eight million, four hundred seventy-eight thousand, one hundred seventy-six".