28236338 has 32 divisors (see below), whose sum is σ = 47174400. Its totient is φ = 12594816.

The previous prime is 28236311. The next prime is 28236347. The reversal of 28236338 is 83363282.

It is a junction number, because it is equal to n+sod(n) for n = 28236298 and 28236307.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121070 + ... + 121302.

It is an arithmetic number, because the mean of its divisors is an integer number (1474200).

Almost surely, 2^28236338 is an apocalyptic number.

28236338 is a deficient number, since it is larger than the sum of its proper divisors (18938062).

28236338 is a wasteful number, since it uses less digits than its factorization.

28236338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386.

The product of its digits is 41472, while the sum is 35.

The square root of 28236338 is about 5313.7875380937. The cubic root of 28236338 is about 304.5108633845.

The spelling of 28236338 in words is "twenty-eight million, two hundred thirty-six thousand, three hundred thirty-eight".