28269838 has 16 divisors (see below), whose sum is σ = 43994160. Its totient is φ = 13608000.

The previous prime is 28269823. The next prime is 28269841. The reversal of 28269838 is 83896282.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34453 + ... + 35263.

It is an arithmetic number, because the mean of its divisors is an integer number (2749635).

Almost surely, 2^28269838 is an apocalyptic number.

28269838 is a deficient number, since it is larger than the sum of its proper divisors (15724322).

28269838 is a wasteful number, since it uses less digits than its factorization.

28269838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1443.

The product of its digits is 331776, while the sum is 46.

The square root of 28269838 is about 5316.9387809152. The cubic root of 28269838 is about 304.6312411560.

The spelling of 28269838 in words is "twenty-eight million, two hundred sixty-nine thousand, eight hundred thirty-eight".