28886038 has 8 divisors (see below), whose sum is σ = 43388280. Its totient is φ = 14423280.

The previous prime is 28886003. The next prime is 28886057. The reversal of 28886038 is 83068882.

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

It is a junction number, because it is equal to n+sod(n) for n = 28885985 and 28886003.

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 3 ways as a sum of consecutive naturals, for example, 7968 + ... + 11011.

It is an arithmetic number, because the mean of its divisors is an integer number (5423535).

Almost surely, 2^28886038 is an apocalyptic number.

28886038 is a deficient number, since it is larger than the sum of its proper divisors (14502242).

28886038 is a wasteful number, since it uses less digits than its factorization.

28886038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19742.

The product of its (nonzero) digits is 147456, while the sum is 43.

The square root of 28886038 is about 5374.5732853874. The cubic root of 28886038 is about 306.8287089954.

The spelling of 28886038 in words is "twenty-eight million, eight hundred eighty-six thousand, thirty-eight".