4218309340 has 24 divisors (see below), whose sum is σ = 10123942752. Its totient is φ = 1446277440.

The previous prime is 4218309287. The next prime is 4218309341. The reversal of 4218309340 is 439038124.

It is a junction number, because it is equal to n+sod(n) for n = 4218309296 and 4218309305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4218309341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15065251 + ... + 15065530.

It is an arithmetic number, because the mean of its divisors is an integer number (421830948).

Almost surely, 2^4218309340 is an apocalyptic number.

It is an amenable number.

4218309340 is an abundant number, since it is smaller than the sum of its proper divisors (5905633412).

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

4218309340 is a wasteful number, since it uses less digits than its factorization.

4218309340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30130797 (or 30130795 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 4218309340 is about 64948.5129929855. The cubic root of 4218309340 is about 1615.7697564130.

The spelling of 4218309340 in words is "four billion, two hundred eighteen million, three hundred nine thousand, three hundred forty".