28136002 has 8 divisors (see below), whose sum is σ = 42234300. Its totient is φ = 14057904.

The previous prime is 28135999. The next prime is 28136011. The reversal of 28136002 is 20063182.

It can be written as a sum of positive squares in 2 ways, for example, as 27363361 + 772641 = 5231^2 + 879^2 .

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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 877 + ... + 7552.

Almost surely, 2^28136002 is an apocalyptic number.

28136002 is a deficient number, since it is larger than the sum of its proper divisors (14098298).

28136002 is a wasteful number, since it uses less digits than its factorization.

28136002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10100.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 28136002 is about 5304.3380359853. The cubic root of 28136002 is about 304.1497487640.

Adding to 28136002 its reverse (20063182), we get a palindrome (48199184).

The spelling of 28136002 in words is "twenty-eight million, one hundred thirty-six thousand, two".