28258202 has 12 divisors (see below), whose sum is σ = 49307850. Its totient is φ = 12110616.

The previous prime is 28258183. The next prime is 28258207. The reversal of 28258202 is 20285282.

It can be written as a sum of positive squares in only one way, i.e., 27050401 + 1207801 = 5201^2 + 1099^2 .

It is not an unprimeable number, because it can be changed into a prime (28258207) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 144077 + ... + 144272.

Almost surely, 2^28258202 is an apocalyptic number.

28258202 is a deficient number, since it is larger than the sum of its proper divisors (21049648).

28258202 is a wasteful number, since it uses less digits than its factorization.

28258202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288365 (or 288358 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 28258202 is about 5315.8444296273. The cubic root of 28258202 is about 304.5894395302.

The spelling of 28258202 in words is "twenty-eight million, two hundred fifty-eight thousand, two hundred two".