28612038 has 96 divisors (see below), whose sum is σ = 73785600. Its totient is φ = 7233408.

The previous prime is 28612027. The next prime is 28612079. The reversal of 28612038 is 83021682.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28611996 and 28612014.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 205773 + ... + 205911.

It is an arithmetic number, because the mean of its divisors is an integer number (768600).

Almost surely, 2^28612038 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28612038, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36892800).

28612038 is an abundant number, since it is smaller than the sum of its proper divisors (45173562).

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

28612038 is a wasteful number, since it uses less digits than its factorization.

28612038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206 (or 193 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 28612038 is about 5349.0221536277. The cubic root of 28612038 is about 305.8554787664.

The spelling of 28612038 in words is "twenty-eight million, six hundred twelve thousand, thirty-eight".