4343400018 has 48 divisors (see below), whose sum is σ = 9724455936. Its totient is φ = 1399628160.

The previous prime is 4343400011. The next prime is 4343400037. The reversal of 4343400018 is 8100043434.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4343399964 and 4343400000.

It is not an unprimeable number, because it can be changed into a prime (4343400011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 611946 + ... + 619002.

It is an arithmetic number, because the mean of its divisors is an integer number (202592832).

Almost surely, 2^4343400018 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4343400018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4862227968).

4343400018 is an abundant number, since it is smaller than the sum of its proper divisors (5381055918).

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

4343400018 is a wasteful number, since it uses less digits than its factorization.

4343400018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8199 (or 8196 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 4343400018 is about 65904.4764640461. The cubic root of 4343400018 is about 1631.5858977644.

The spelling of 4343400018 in words is "four billion, three hundred forty-three million, four hundred thousand, eighteen".