28449608 has 32 divisors (see below), whose sum is σ = 58605120. Its totient is φ = 12840000.

The previous prime is 28449601. The next prime is 28449611. The reversal of 28449608 is 80694482.

It is not an unprimeable number, because it can be changed into a prime (28449601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12218 + ... + 14358.

It is an arithmetic number, because the mean of its divisors is an integer number (1831410).

Almost surely, 2^28449608 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 28449608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29302560).

28449608 is an abundant number, since it is smaller than the sum of its proper divisors (30155512).

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

28449608 is a wasteful number, since it uses less digits than its factorization.

28449608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2309 (or 2305 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 28449608 is about 5333.8173946996. The cubic root of 28449608 is about 305.2756014662.

The spelling of 28449608 in words is "twenty-eight million, four hundred forty-nine thousand, six hundred eight".