4513644420 has 24 divisors (see below), whose sum is σ = 12638204544. Its totient is φ = 1203638496.

The previous prime is 4513644403. The next prime is 4513644433. The reversal of 4513644420 is 244463154.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37613644 + ... + 37613763.

It is an arithmetic number, because the mean of its divisors is an integer number (526591856).

Almost surely, 2^4513644420 is an apocalyptic number.

It is an amenable number.

4513644420 is an abundant number, since it is smaller than the sum of its proper divisors (8124560124).

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

4513644420 is a wasteful number, since it uses less digits than its factorization.

4513644420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75227419 (or 75227417 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 33.

The square root of 4513644420 is about 67183.6618531619. The cubic root of 4513644420 is about 1652.6305660730.

The spelling of 4513644420 in words is "four billion, five hundred thirteen million, six hundred forty-four thousand, four hundred twenty".