28918092 has 24 divisors (see below), whose sum is σ = 77115136. Its totient is φ = 8262288.

The previous prime is 28918081. The next prime is 28918093. The reversal of 28918092 is 29081982.

It is a self number, because there is not a number n which added to its sum of digits gives 28918092.

It is not an unprimeable number, because it can be changed into a prime (28918093) 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 7 ways as a sum of consecutive naturals, for example, 172048 + ... + 172215.

Almost surely, 2^28918092 is an apocalyptic number.

It is an amenable number.

28918092 is an abundant number, since it is smaller than the sum of its proper divisors (48197044).

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

28918092 is a wasteful number, since it uses less digits than its factorization.

28918092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344277 (or 344275 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 28918092 is about 5377.5544627646. The cubic root of 28918092 is about 306.9421600195.

It can be divided in two parts, 289 and 18092, that added together give a palindrome (18381).

The spelling of 28918092 in words is "twenty-eight million, nine hundred eighteen thousand, ninety-two".