28819110 has 16 divisors (see below), whose sum is σ = 69165936. Its totient is φ = 7685088.

The previous prime is 28819103. The next prime is 28819111. The reversal of 28819110 is 1191882.

It is a super-2 number, since 2×28819110² = 1661082202384200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 960637 = 28819110 / (2 + 8 + 8 + 1 + 9 + 1 + 1 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28819111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 480289 + ... + 480348.

It is an arithmetic number, because the mean of its divisors is an integer number (4322871).

Almost surely, 2^28819110 is an apocalyptic number.

28819110 is an abundant number, since it is smaller than the sum of its proper divisors (40346826).

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

28819110 is a wasteful number, since it uses less digits than its factorization.

28819110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960647.

The product of its (nonzero) digits is 1152, while the sum is 30.

The square root of 28819110 is about 5368.3433198707. The cubic root of 28819110 is about 306.5915550659.

The spelling of 28819110 in words is "twenty-eight million, eight hundred nineteen thousand, one hundred ten".