28528202 has 8 divisors (see below), whose sum is σ = 42826116. Its totient is φ = 14252832.

The previous prime is 28528189. The next prime is 28528231. The reversal of 28528202 is 20282582.

It can be written as a sum of positive squares in 2 ways, for example, as 17631601 + 10896601 = 4199^2 + 3301^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 2003 + ... + 7814.

Almost surely, 2^28528202 is an apocalyptic number.

28528202 is a deficient number, since it is larger than the sum of its proper divisors (14297914).

28528202 is a wasteful number, since it uses less digits than its factorization.

28528202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11272.

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

The square root of 28528202 is about 5341.1798322094. The cubic root of 28528202 is about 305.5564579490.

The spelling of 28528202 in words is "twenty-eight million, five hundred twenty-eight thousand, two hundred two".