18230292444 has 192 divisors, whose sum is σ = 55488384000. Its totient is φ = 4523599872.

The previous prime is 18230292331. The next prime is 18230292467. The reversal of 18230292444 is 44429203281.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3088504 + ... + 3094400.

It is an arithmetic number, because the mean of its divisors is an integer number (289002000).

Almost surely, 2^18230292444 is an apocalyptic number.

18230292444 is a gapful number since it is divisible by the number (14) 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 18230292444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27744192000).

18230292444 is an abundant number, since it is smaller than the sum of its proper divisors (37258091556).

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

18230292444 is a wasteful number, since it uses less digits than its factorization.

18230292444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6092 (or 6090 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The spelling of 18230292444 in words is "eighteen billion, two hundred thirty million, two hundred ninety-two thousand, four hundred forty-four".