18838092 has 72 divisors (see below), whose sum is σ = 54437376. Its totient is φ = 4964544.

The previous prime is 18838033. The next prime is 18838093. The reversal of 18838092 is 29083881.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 18838092.

It is not an unprimeable number, because it can be changed into a prime (18838093) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 13533 + ... + 14859.

Almost surely, 2^18838092 is an apocalyptic number.

18838092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18838092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27218688).

18838092 is an abundant number, since it is smaller than the sum of its proper divisors (35599284).

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

18838092 is a wasteful number, since it uses less digits than its factorization.

18838092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367 (or 1352 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 18838092 is about 4340.2870872789. The cubic root of 18838092 is about 266.0800445032.

The spelling of 18838092 in words is "eighteen million, eight hundred thirty-eight thousand, ninety-two".