28464450 has 48 divisors (see below), whose sum is σ = 80679360. Its totient is φ = 6505920.

The previous prime is 28464439. The next prime is 28464463. The reversal of 28464450 is 5446482.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 12505 + ... + 14604.

It is an arithmetic number, because the mean of its divisors is an integer number (1680820).

Almost surely, 2^28464450 is an apocalyptic number.

28464450 is an abundant number, since it is smaller than the sum of its proper divisors (52214910).

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

28464450 is a wasteful number, since it uses less digits than its factorization.

28464450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27131 (or 27126 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 33.

The square root of 28464450 is about 5335.2085245096. The cubic root of 28464450 is about 305.3286790902.

The spelling of 28464450 in words is "twenty-eight million, four hundred sixty-four thousand, four hundred fifty".