28284276 has 48 divisors (see below), whose sum is σ = 68741120. Its totient is φ = 9041760.

The previous prime is 28284257. The next prime is 28284283. The reversal of 28284276 is 67248282.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51435 + ... + 51981.

Almost surely, 2^28284276 is an apocalyptic number.

It is an amenable number.

28284276 is an abundant number, since it is smaller than the sum of its proper divisors (40456844).

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

28284276 is a wasteful number, since it uses less digits than its factorization.

28284276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724 (or 722 counting only the distinct ones).

The product of its digits is 86016, while the sum is 39.

The square root of 28284276 is about 5318.2963437552. The cubic root of 28284276 is about 304.6830928541.

The spelling of 28284276 in words is "twenty-eight million, two hundred eighty-four thousand, two hundred seventy-six".