28338234 has 32 divisors (see below), whose sum is σ = 59919360. Its totient is φ = 8910000.

The previous prime is 28338229. The next prime is 28338239. The reversal of 28338234 is 43283382.

It is an interprime number because it is at equal distance from previous prime (28338229) and next prime (28338239).

It is a junction number, because it is equal to n+sod(n) for n = 28338195 and 28338204.

It is not an unprimeable number, because it can be changed into a prime (28338239) 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 15 ways as a sum of consecutive naturals, for example, 37359 + ... + 38109.

It is an arithmetic number, because the mean of its divisors is an integer number (1872480).

Almost surely, 2^28338234 is an apocalyptic number.

28338234 is an abundant number, since it is smaller than the sum of its proper divisors (31581126).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28338234 is a wasteful number, since it uses less digits than its factorization.

28338234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106.

The product of its digits is 27648, while the sum is 33.

The square root of 28338234 is about 5323.3667917963. The cubic root of 28338234 is about 304.8767180697.

The spelling of 28338234 in words is "twenty-eight million, three hundred thirty-eight thousand, two hundred thirty-four".