28151202 has 8 divisors (see below), whose sum is σ = 56302416. Its totient is φ = 9383732.

The previous prime is 28151177. The next prime is 28151213. The reversal of 28151202 is 20215182.

It is a happy number.

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

28151202 is an admirable number.

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, 2345928 + ... + 2345939.

It is an arithmetic number, because the mean of its divisors is an integer number (7037802).

Almost surely, 2^28151202 is an apocalyptic number.

28151202 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28151202 is a wasteful number, since it uses less digits than its factorization.

28151202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4691872.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 28151202 is about 5305.7706320571. The cubic root of 28151202 is about 304.2045094927.

Adding to 28151202 its reverse (20215182), we get a palindrome (48366384).

The spelling of 28151202 in words is "twenty-eight million, one hundred fifty-one thousand, two hundred two".