28338384 has 20 divisors (see below), whose sum is σ = 73207616. Its totient is φ = 9446112.

The previous prime is 28338379. The next prime is 28338389. The reversal of 28338384 is 48383382.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28338379) and next prime (28338389).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28338389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 295144 + ... + 295239.

Almost surely, 2^28338384 is an apocalyptic number.

28338384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28338384 is an abundant number, since it is smaller than the sum of its proper divisors (44869232).

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

28338384 is a wasteful number, since it uses less digits than its factorization.

28338384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590394 (or 590388 counting only the distinct ones).

The product of its digits is 110592, while the sum is 39.

The square root of 28338384 is about 5323.3808806059. The cubic root of 28338384 is about 304.8772559935.

The spelling of 28338384 in words is "twenty-eight million, three hundred thirty-eight thousand, three hundred eighty-four".