4318640420 has 12 divisors (see below), whose sum is σ = 9069144924. Its totient is φ = 1727456160.

The previous prime is 4318640419. The next prime is 4318640423. The reversal of 4318640420 is 240468134.

It can be written as a sum of positive squares in 2 ways, for example, as 1260108004 + 3058532416 = 35498^2 + 55304^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (4318640423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107965991 + ... + 107966030.

It is an arithmetic number, because the mean of its divisors is an integer number (755762077).

Almost surely, 2^4318640420 is an apocalyptic number.

It is an amenable number.

4318640420 is an abundant number, since it is smaller than the sum of its proper divisors (4750504504).

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

4318640420 is a wasteful number, since it uses less digits than its factorization.

4318640420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215932030 (or 215932028 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 4318640420 is about 65716.3634112540. The cubic root of 4318640420 is about 1628.4796970346.

The spelling of 4318640420 in words is "four billion, three hundred eighteen million, six hundred forty thousand, four hundred twenty".