28338470 has 16 divisors (see below), whose sum is σ = 51202368. Its totient is φ = 11292480.

The previous prime is 28338463. The next prime is 28338491. The reversal of 28338470 is 7483382.

It is a self number, because there is not a number n which added to its sum of digits gives 28338470.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 2519 + ... + 7938.

It is an arithmetic number, because the mean of its divisors is an integer number (3200148).

Almost surely, 2^28338470 is an apocalyptic number.

28338470 is a deficient number, since it is larger than the sum of its proper divisors (22863898).

28338470 is a wasteful number, since it uses less digits than its factorization.

28338470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10735.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 28338470 is about 5323.3889581732. The cubic root of 28338470 is about 304.8775644022.

The spelling of 28338470 in words is "twenty-eight million, three hundred thirty-eight thousand, four hundred seventy".