28118802 has 8 divisors (see below), whose sum is σ = 56237616. Its totient is φ = 9372932.

The previous prime is 28118801. The next prime is 28118809. The reversal of 28118802 is 20881182.

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

28118802 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 28118802.

It is not an unprimeable number, because it can be changed into a prime (28118801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2343228 + ... + 2343239.

It is an arithmetic number, because the mean of its divisors is an integer number (7029702).

Almost surely, 2^28118802 is an apocalyptic number.

28118802 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.

28118802 is a wasteful number, since it uses less digits than its factorization.

28118802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4686472.

The product of its (nonzero) digits is 2048, while the sum is 30.

The square root of 28118802 is about 5302.7164736576. The cubic root of 28118802 is about 304.0877588853.

Adding to 28118802 its reverse (20881182), we get a palindrome (48999984).

It can be divided in two parts, 28118 and 802, that added together give a triangular number (28920 = T₂₄₀).

The spelling of 28118802 in words is "twenty-eight million, one hundred eighteen thousand, eight hundred two".