18809088 has 72 divisors (see below), whose sum is σ = 52735200. Its totient is φ = 5935104.

The previous prime is 18809083. The next prime is 18809093. The reversal of 18809088 is 88090881.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (18809083) and next prime (18809093).

It is not an unprimeable number, because it can be changed into a prime (18809083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13948 + ... + 15236.

Almost surely, 2^18809088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18809088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26367600).

18809088 is an abundant number, since it is smaller than the sum of its proper divisors (33926112).

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

18809088 is a wasteful number, since it uses less digits than its factorization.

18809088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1327 (or 1313 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 42.

The square root of 18809088 is about 4336.9445465673. The cubic root of 18809088 is about 265.9434179686.

The spelling of 18809088 in words is "eighteen million, eight hundred nine thousand, eighty-eight".