28449168 has 40 divisors (see below), whose sum is σ = 80176416. Its totient is φ = 8620800.

The previous prime is 28449167. The next prime is 28449191. The reversal of 28449168 is 86194482.

It is not an unprimeable number, because it can be changed into a prime (28449167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26413 + ... + 27468.

Almost surely, 2^28449168 is an apocalyptic number.

It is an amenable number.

28449168 is an abundant number, since it is smaller than the sum of its proper divisors (51727248).

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

28449168 is a wasteful number, since it uses less digits than its factorization.

28449168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53903 (or 53897 counting only the distinct ones).

The product of its digits is 110592, while the sum is 42.

The square root of 28449168 is about 5333.7761482837. The cubic root of 28449168 is about 305.2740276664.

The spelling of 28449168 in words is "twenty-eight million, four hundred forty-nine thousand, one hundred sixty-eight".