28016418 has 16 divisors (see below), whose sum is σ = 57225600. Its totient is φ = 9140016.

The previous prime is 28016411. The next prime is 28016419. The reversal of 28016418 is 81461082.

It is not an unprimeable number, because it can be changed into a prime (28016411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49393 + ... + 49956.

It is an arithmetic number, because the mean of its divisors is an integer number (3576600).

Almost surely, 2^28016418 is an apocalyptic number.

28016418 is an abundant number, since it is smaller than the sum of its proper divisors (29209182).

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

28016418 is a wasteful number, since it uses less digits than its factorization.

28016418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99401.

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 28016418 is about 5293.0537499632. The cubic root of 28016418 is about 303.7182364455.

The spelling of 28016418 in words is "twenty-eight million, sixteen thousand, four hundred eighteen".