28103338 has 16 divisors (see below), whose sum is σ = 43354080. Its totient is φ = 13655376.

The previous prime is 28103323. The next prime is 28103347. The reversal of 28103338 is 83330182.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18981 + ... + 20407.

It is an arithmetic number, because the mean of its divisors is an integer number (2709630).

Almost surely, 2^28103338 is an apocalyptic number.

28103338 is a deficient number, since it is larger than the sum of its proper divisors (15250742).

28103338 is a wasteful number, since it uses less digits than its factorization.

28103338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1701.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 28103338 is about 5301.2581525521. The cubic root of 28103338 is about 304.0320040752.

It can be divided in two parts, 28103 and 338, that added together give a triangular number (28441 = T₂₃₈).

The spelling of 28103338 in words is "twenty-eight million, one hundred three thousand, three hundred thirty-eight".