28441760 has 24 divisors (see below), whose sum is σ = 67194036. Its totient is φ = 11376640.

The previous prime is 28441753. The next prime is 28441771. The reversal of 28441760 is 6714482.

It can be written as a sum of positive squares in 2 ways, for example, as 25441936 + 2999824 = 5044^2 + 1732^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 88721 + ... + 89040.

Almost surely, 2^28441760 is an apocalyptic number.

28441760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28441760 is an abundant number, since it is smaller than the sum of its proper divisors (38752276).

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

28441760 is a wasteful number, since it uses less digits than its factorization.

28441760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177776 (or 177768 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 28441760 is about 5333.0816607286. The cubic root of 28441760 is about 305.2475281649.

The spelling of 28441760 in words is "twenty-eight million, four hundred forty-one thousand, seven hundred sixty".