28389110 has 8 divisors (see below), whose sum is σ = 51100416. Its totient is φ = 11355640.

The previous prime is 28389083. The next prime is 28389139. The reversal of 28389110 is 1198382.

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

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, 1419446 + ... + 1419465.

It is an arithmetic number, because the mean of its divisors is an integer number (6387552).

Almost surely, 2^28389110 is an apocalyptic number.

28389110 is a deficient number, since it is larger than the sum of its proper divisors (22711306).

28389110 is a wasteful number, since it uses less digits than its factorization.

28389110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2838918.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 28389110 is about 5328.1432037812. The cubic root of 28389110 is about 305.0590587059.

The spelling of 28389110 in words is "twenty-eight million, three hundred eighty-nine thousand, one hundred ten".