28052118 has 24 divisors (see below), whose sum is σ = 62263656. Its totient is φ = 9122400.

The previous prime is 28052107. The next prime is 28052119. The reversal of 28052118 is 81125082.

It is a junction number, because it is equal to n+sod(n) for n = 28052091 and 28052100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28052119) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 18268 + ... + 19743.

It is an arithmetic number, because the mean of its divisors is an integer number (2594319).

Almost surely, 2^28052118 is an apocalyptic number.

28052118 is an abundant number, since it is smaller than the sum of its proper divisors (34211538).

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

28052118 is a wasteful number, since it uses less digits than its factorization.

28052118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38060 (or 38057 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 28052118 is about 5296.4250207097. The cubic root of 28052118 is about 303.8471862972.

The spelling of 28052118 in words is "twenty-eight million, fifty-two thousand, one hundred eighteen".