28238854 has 16 divisors (see below), whose sum is σ = 48503808. Its totient is φ = 12078792.

The previous prime is 28238849. The next prime is 28238857. The reversal of 28238854 is 45883282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28238857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6837 + ... + 10159.

It is an arithmetic number, because the mean of its divisors is an integer number (3031488).

Almost surely, 2^28238854 is an apocalyptic number.

28238854 is a deficient number, since it is larger than the sum of its proper divisors (20264954).

28238854 is a wasteful number, since it uses less digits than its factorization.

28238854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3939.

The product of its digits is 122880, while the sum is 40.

The square root of 28238854 is about 5314.0242754432. The cubic root of 28238854 is about 304.5199076000.

It can be divided in two parts, 28238 and 854, that added together give a palindrome (29092).

The spelling of 28238854 in words is "twenty-eight million, two hundred thirty-eight thousand, eight hundred fifty-four".