28838241 has 8 divisors (see below), whose sum is σ = 42723360. Its totient is φ = 19225476.

The previous prime is 28838237. The next prime is 28838263. The reversal of 28838241 is 14283882.

It is a happy number.

It is not a de Polignac number, because 28838241 - 2² = 28838237 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28838196 and 28838205.

It is not an unprimeable number, because it can be changed into a prime (28838221) 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, 534015 + ... + 534068.

It is an arithmetic number, because the mean of its divisors is an integer number (5340420).

Almost surely, 2^28838241 is an apocalyptic number.

It is an amenable number.

28838241 is a deficient number, since it is larger than the sum of its proper divisors (13885119).

28838241 is a wasteful number, since it uses less digits than its factorization.

28838241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068092 (or 1068086 counting only the distinct ones).

The product of its digits is 24576, while the sum is 36.

The square root of 28838241 is about 5370.1248588836. The cubic root of 28838241 is about 306.6593816532.

The spelling of 28838241 in words is "twenty-eight million, eight hundred thirty-eight thousand, two hundred forty-one".