28838043 has 24 divisors (see below), whose sum is σ = 45313632. Its totient is φ = 17566848.

The previous prime is 28838039. The next prime is 28838053. The reversal of 28838043 is 34083882.

It is a happy number.

It is not a de Polignac number, because 28838043 - 2² = 28838039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28837989 and 28838007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28838023) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 10855 + ... + 13247.

It is an arithmetic number, because the mean of its divisors is an integer number (1888068).

Almost surely, 2^28838043 is an apocalyptic number.

28838043 is a deficient number, since it is larger than the sum of its proper divisors (16475589).

28838043 is a wasteful number, since it uses less digits than its factorization.

28838043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2515 (or 2512 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 28838043 is about 5370.1064235264. The cubic root of 28838043 is about 306.6586798224.

The spelling of 28838043 in words is "twenty-eight million, eight hundred thirty-eight thousand, forty-three".