28441776 has 120 divisors (see below), whose sum is σ = 83119680. Its totient is φ = 8370560.

The previous prime is 28441771. The next prime is 28441793. The reversal of 28441776 is 67714482.

It is not an unprimeable number, because it can be changed into a prime (28441771) 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, 342631 + ... + 342713.

It is an arithmetic number, because the mean of its divisors is an integer number (692664).

Almost surely, 2^28441776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28441776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41559840).

28441776 is an abundant number, since it is smaller than the sum of its proper divisors (54677904).

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

28441776 is a wasteful number, since it uses less digits than its factorization.

28441776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175 (or 158 counting only the distinct ones).

The product of its digits is 75264, while the sum is 39.

The square root of 28441776 is about 5333.0831607992. The cubic root of 28441776 is about 305.2475854042.

The spelling of 28441776 in words is "twenty-eight million, four hundred forty-one thousand, seven hundred seventy-six".