18289050 has 96 divisors (see below), whose sum is σ = 49871808. Its totient is φ = 4408320.

The previous prime is 18289027. The next prime is 18289069. The reversal of 18289050 is 5098281.

It is a happy number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 161794 + ... + 161906.

It is an arithmetic number, because the mean of its divisors is an integer number (519498).

Almost surely, 2^18289050 is an apocalyptic number.

18289050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18289050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24935904).

18289050 is an abundant number, since it is smaller than the sum of its proper divisors (31582758).

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

18289050 is a wasteful number, since it uses less digits than its factorization.

18289050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224 (or 219 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 18289050 is about 4276.5698871876. The cubic root of 18289050 is about 263.4695213233.

It can be divided in two parts, 1828 and 9050, that added together give a triangular number (10878 = T₁₄₇).

The spelling of 18289050 in words is "eighteen million, two hundred eighty-nine thousand, fifty".