28984338 has 32 divisors (see below), whose sum is σ = 64627200. Its totient is φ = 9628848.

The previous prime is 28984309. The next prime is 28984339. The reversal of 28984338 is 83348982.

It is a super-3 number, since 3×28984338³ (a number of 23 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28984293 and 28984302.

It is not an unprimeable number, because it can be changed into a prime (28984339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19423 + ... + 20861.

It is an arithmetic number, because the mean of its divisors is an integer number (2019600).

Almost surely, 2^28984338 is an apocalyptic number.

28984338 is an abundant number, since it is smaller than the sum of its proper divisors (35642862).

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

28984338 is a wasteful number, since it uses less digits than its factorization.

28984338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1823 (or 1817 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 28984338 is about 5383.7104305488. The cubic root of 28984338 is about 307.1763638431.

The spelling of 28984338 in words is "twenty-eight million, nine hundred eighty-four thousand, three hundred thirty-eight".