28140676 has 12 divisors (see below), whose sum is σ = 49286608. Its totient is φ = 14058792.

The previous prime is 28140647. The next prime is 28140709. The reversal of 28140676 is 67604182.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

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, 4975 + ... + 9001.

Almost surely, 2^28140676 is an apocalyptic number.

It is an amenable number.

28140676 is a deficient number, since it is larger than the sum of its proper divisors (21145932).

28140676 is a wasteful number, since it uses less digits than its factorization.

28140676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5778 (or 5776 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 28140676 is about 5304.7786004696. The cubic root of 28140676 is about 304.1665897875.

The spelling of 28140676 in words is "twenty-eight million, one hundred forty thousand, six hundred seventy-six".