28741448 has 16 divisors (see below), whose sum is σ = 53972460. Its totient is φ = 14348800.

The previous prime is 28741417. The next prime is 28741481. The reversal of 28741448 is 84414782.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 25421764 + 3319684 = 5042^2 + 1822^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3728 + ... + 8448.

Almost surely, 2^28741448 is an apocalyptic number.

It is an amenable number.

28741448 is a deficient number, since it is larger than the sum of its proper divisors (25231012).

28741448 is a wasteful number, since it uses less digits than its factorization.

28741448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5488 (or 5484 counting only the distinct ones).

The product of its digits is 57344, while the sum is 38.

The square root of 28741448 is about 5361.1051099563. The cubic root of 28741448 is about 306.3159054051.

The spelling of 28741448 in words is "twenty-eight million, seven hundred forty-one thousand, four hundred forty-eight".