8243569420 has 24 divisors (see below), whose sum is σ = 17530632000. Its totient is φ = 3255687552.

The previous prime is 8243569363. The next prime is 8243569421. The reversal of 8243569420 is 249653428.

It is not an unprimeable number, because it can be changed into a prime (8243569421) 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, 2607145 + ... + 2610304.

It is an arithmetic number, because the mean of its divisors is an integer number (730443000).

Almost surely, 2^8243569420 is an apocalyptic number.

It is an amenable number.

8243569420 is an abundant number, since it is smaller than the sum of its proper divisors (9287062580).

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

8243569420 is a wasteful number, since it uses less digits than its factorization.

8243569420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5217537 (or 5217535 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 43.

The square root of 8243569420 is about 90794.1045442930. The cubic root of 8243569420 is about 2020.0948734971.

The spelling of 8243569420 in words is "eight billion, two hundred forty-three million, five hundred sixty-nine thousand, four hundred twenty".