28446208 has 40 divisors (see below), whose sum is σ = 64964592. Its totient is φ = 12189696.

The previous prime is 28446179. The next prime is 28446247. The reversal of 28446208 is 80264482.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385 + ... + 7552.

Almost surely, 2^28446208 is an apocalyptic number.

28446208 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28446208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32482296).

28446208 is an abundant number, since it is smaller than the sum of its proper divisors (36518384).

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

28446208 is an frugal number, since it uses more digits than its factorization.

28446208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7962 (or 7946 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 34.

The square root of 28446208 is about 5333.4986641041. The cubic root of 28446208 is about 305.2634398646.

The spelling of 28446208 in words is "twenty-eight million, four hundred forty-six thousand, two hundred eight".