18290238000 has 320 divisors, whose sum is σ = 61058949120. Its totient is φ = 4707456000.

The previous prime is 18290237989. The next prime is 18290238007. The reversal of 18290238000 is 83209281.

It is not an unprimeable number, because it can be changed into a prime (18290238007) 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 63 ways as a sum of consecutive naturals, for example, 22277590 + ... + 22278410.

It is an arithmetic number, because the mean of its divisors is an integer number (190809216).

Almost surely, 2^18290238000 is an apocalyptic number.

18290238000 is a gapful number since it is divisible by the number (10) 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 18290238000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30529474560).

18290238000 is an abundant number, since it is smaller than the sum of its proper divisors (42768711120).

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

18290238000 is a wasteful number, since it uses less digits than its factorization.

18290238000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973 (or 957 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The spelling of 18290238000 in words is "eighteen billion, two hundred ninety million, two hundred thirty-eight thousand".