28441149 has 8 divisors (see below), whose sum is σ = 41368992. Its totient is φ = 17237040.

The previous prime is 28441117. The next prime is 28441151. The reversal of 28441149 is 94114482.

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

It is not a de Polignac number, because 28441149 - 2⁵ = 28441117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 861853 = 28441149 / (2 + 8 + 4 + 4 + 1 + 1 + 4 + 9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28441159) 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, 430894 + ... + 430959.

It is an arithmetic number, because the mean of its divisors is an integer number (5171124).

Almost surely, 2^28441149 is an apocalyptic number.

It is an amenable number.

28441149 is a deficient number, since it is larger than the sum of its proper divisors (12927843).

28441149 is a wasteful number, since it uses less digits than its factorization.

28441149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861867.

The product of its digits is 9216, while the sum is 33.

The square root of 28441149 is about 5333.0243764678. The cubic root of 28441149 is about 305.2453423229.

It can be divided in two parts, 2844 and 1149, that added together give a palindrome (3993).

The spelling of 28441149 in words is "twenty-eight million, four hundred forty-one thousand, one hundred forty-nine".