28274516 has 12 divisors (see below), whose sum is σ = 49859040. Its totient is φ = 14029080.

The previous prime is 28274509. The next prime is 28274551. The reversal of 28274516 is 61547282.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26456 + ... + 27503.

It is an arithmetic number, because the mean of its divisors is an integer number (4154920).

Almost surely, 2^28274516 is an apocalyptic number.

It is an amenable number.

28274516 is a deficient number, since it is larger than the sum of its proper divisors (21584524).

28274516 is a wasteful number, since it uses less digits than its factorization.

28274516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54094 (or 54092 counting only the distinct ones).

The product of its digits is 26880, while the sum is 35.

The square root of 28274516 is about 5317.3786775064. The cubic root of 28274516 is about 304.6480433552.

The spelling of 28274516 in words is "twenty-eight million, two hundred seventy-four thousand, five hundred sixteen".