18303045830 has 32 divisors (see below), whose sum is σ = 33059854080. Its totient is φ = 7295840640.

The previous prime is 18303045799. The next prime is 18303045833. The reversal of 18303045830 is 3854030381.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18303045833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6981920 + ... + 6984540.

It is an arithmetic number, because the mean of its divisors is an integer number (1033120440).

Almost surely, 2^18303045830 is an apocalyptic number.

18303045830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18303045830 is a deficient number, since it is larger than the sum of its proper divisors (14756808250).

18303045830 is a wasteful number, since it uses less digits than its factorization.

18303045830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4784.

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 18303045830 in words is "eighteen billion, three hundred three million, forty-five thousand, eight hundred thirty".