28519194 has 64 divisors (see below), whose sum is σ = 65691648. Its totient is φ = 8174400.

The previous prime is 28519159. The next prime is 28519199. The reversal of 28519194 is 49191582.

It is not an unprimeable number, because it can be changed into a prime (28519199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108307 + ... + 108569.

It is an arithmetic number, because the mean of its divisors is an integer number (1026432).

Almost surely, 2^28519194 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28519194, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32845824).

28519194 is an abundant number, since it is smaller than the sum of its proper divisors (37172454).

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

28519194 is a wasteful number, since it uses less digits than its factorization.

28519194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363.

The product of its digits is 25920, while the sum is 39.

The square root of 28519194 is about 5340.3365062513. The cubic root of 28519194 is about 305.5242939600.

The spelling of 28519194 in words is "twenty-eight million, five hundred nineteen thousand, one hundred ninety-four".