28464276 has 12 divisors (see below), whose sum is σ = 66416672. Its totient is φ = 9488088.

The previous prime is 28464259. The next prime is 28464301. The reversal of 28464276 is 67246482.

It is a tau number, because it is divible by the number of its divisors (12).

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, 1186000 + ... + 1186023.

Almost surely, 2^28464276 is an apocalyptic number.

It is an amenable number.

28464276 is an abundant number, since it is smaller than the sum of its proper divisors (37952396).

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

28464276 is a wasteful number, since it uses less digits than its factorization.

28464276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2372030 (or 2372028 counting only the distinct ones).

The product of its digits is 129024, while the sum is 39.

The square root of 28464276 is about 5335.1922177181. The cubic root of 28464276 is about 305.3280569422.

The spelling of 28464276 in words is "twenty-eight million, four hundred sixty-four thousand, two hundred seventy-six".