28804230 has 96 divisors (see below), whose sum is σ = 92199744. Its totient is φ = 6075648.

The previous prime is 28804229. The next prime is 28804249. The reversal of 28804230 is 3240882.

It is a junction number, because it is equal to n+sod(n) for n = 28804194 and 28804203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6432 + ... + 9948.

It is an arithmetic number, because the mean of its divisors is an integer number (960414).

Almost surely, 2^28804230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28804230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46099872).

28804230 is an abundant number, since it is smaller than the sum of its proper divisors (63395514).

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

28804230 is a wasteful number, since it uses less digits than its factorization.

28804230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3550 (or 3547 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 28804230 is about 5366.9572385105. The cubic root of 28804230 is about 306.5387791158.

The spelling of 28804230 in words is "twenty-eight million, eight hundred four thousand, two hundred thirty".