28202830 has 32 divisors (see below), whose sum is σ = 56096064. Its totient is φ = 10154496.

The previous prime is 28202827. The next prime is 28202831. The reversal of 28202830 is 3820282.

It is a junction number, because it is equal to n+sod(n) for n = 28202795 and 28202804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28202831) 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, 304 + ... + 7516.

It is an arithmetic number, because the mean of its divisors is an integer number (1753002).

Almost surely, 2^28202830 is an apocalyptic number.

28202830 is a deficient number, since it is larger than the sum of its proper divisors (27893234).

28202830 is a wasteful number, since it uses less digits than its factorization.

28202830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7260.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 28202830 is about 5310.6336721713. The cubic root of 28202830 is about 304.3903615823.

The spelling of 28202830 in words is "twenty-eight million, two hundred two thousand, eight hundred thirty".