28338338 has 8 divisors (see below), whose sum is σ = 48580032. Its totient is φ = 12144996.

The previous prime is 28338319. The next prime is 28338361. The reversal of 28338338 is 83383382.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×28338338² = 1606122801204488, which contains 22 as substring.

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, 1012070 + ... + 1012097.

It is an arithmetic number, because the mean of its divisors is an integer number (6072504).

Almost surely, 2^28338338 is an apocalyptic number.

28338338 is a deficient number, since it is larger than the sum of its proper divisors (20241694).

28338338 is a wasteful number, since it uses less digits than its factorization.

28338338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2024176.

The product of its digits is 82944, while the sum is 38.

The square root of 28338338 is about 5323.3765600416. The cubic root of 28338338 is about 304.8770910304.

The spelling of 28338338 in words is "twenty-eight million, three hundred thirty-eight thousand, three hundred thirty-eight".