28894194 has 48 divisors (see below), whose sum is σ = 73225152. Its totient is φ = 8061984.

The previous prime is 28894189. The next prime is 28894199. The reversal of 28894194 is 49149882.

It is an interprime number because it is at equal distance from previous prime (28894189) and next prime (28894199).

It is not an unprimeable number, because it can be changed into a prime (28894199) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2752 + ... + 8084.

It is an arithmetic number, because the mean of its divisors is an integer number (1525524).

Almost surely, 2^28894194 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28894194, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36612576).

28894194 is an abundant number, since it is smaller than the sum of its proper divisors (44330958).

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

28894194 is a wasteful number, since it uses less digits than its factorization.

28894194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5391 (or 5388 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 28894194 is about 5375.3319897472. The cubic root of 28894194 is about 306.8575840695.

The spelling of 28894194 in words is "twenty-eight million, eight hundred ninety-four thousand, one hundred ninety-four".