4218383940 has 48 divisors (see below), whose sum is σ = 11845377600. Its totient is φ = 1121673600.

The previous prime is 4218383899. The next prime is 4218383941. The reversal of 4218383940 is 493838124.

It is a junction number, because it is equal to n+sod(n) for n = 4218383892 and 4218383901.

It is not an unprimeable number, because it can be changed into a prime (4218383941) 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, 79786 + ... + 121665.

It is an arithmetic number, because the mean of its divisors is an integer number (246778700).

Almost surely, 2^4218383940 is an apocalyptic number.

It is an amenable number.

4218383940 is an abundant number, since it is smaller than the sum of its proper divisors (7626993660).

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

4218383940 is a wasteful number, since it uses less digits than its factorization.

4218383940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201812 (or 201810 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 4218383940 is about 64949.0872915086. The cubic root of 4218383940 is about 1615.7792812173.

The spelling of 4218383940 in words is "four billion, two hundred eighteen million, three hundred eighty-three thousand, nine hundred forty".