28441749 has 16 divisors (see below), whose sum is σ = 43935872. Its totient is φ = 16028928.

The previous prime is 28441747. The next prime is 28441753. The reversal of 28441749 is 94714482.

It is not a de Polignac number, because 28441749 - 2¹ = 28441747 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28441747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7744 + ... + 10809.

It is an arithmetic number, because the mean of its divisors is an integer number (2745992).

Almost surely, 2^28441749 is an apocalyptic number.

It is an amenable number.

28441749 is a deficient number, since it is larger than the sum of its proper divisors (15494123).

28441749 is a wasteful number, since it uses less digits than its factorization.

28441749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18636.

The product of its digits is 64512, while the sum is 39.

The square root of 28441749 is about 5333.0806294299. The cubic root of 28441749 is about 305.2474888128.

The spelling of 28441749 in words is "twenty-eight million, four hundred forty-one thousand, seven hundred forty-nine".