28441886 has 8 divisors (see below), whose sum is σ = 46541304. Its totient is φ = 12928120.

The previous prime is 28441873. The next prime is 28441927. The reversal of 28441886 is 68814482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

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, 646385 + ... + 646428.

It is an arithmetic number, because the mean of its divisors is an integer number (5817663).

Almost surely, 2^28441886 is an apocalyptic number.

28441886 is a deficient number, since it is larger than the sum of its proper divisors (18099418).

28441886 is a wasteful number, since it uses less digits than its factorization.

28441886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1292826.

The product of its digits is 98304, while the sum is 41.

The square root of 28441886 is about 5333.0934737730. The cubic root of 28441886 is about 305.2479789238.

The spelling of 28441886 in words is "twenty-eight million, four hundred forty-one thousand, eight hundred eighty-six".