845560420 has 24 divisors (see below), whose sum is σ = 1869134400. Its totient is φ = 320422752.

The previous prime is 845560403. The next prime is 845560421. The reversal of 845560420 is 24065548.

It is not an unprimeable number, because it can be changed into a prime (845560421) 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, 1112200 + ... + 1112959.

It is an arithmetic number, because the mean of its divisors is an integer number (77880600).

Almost surely, 2^845560420 is an apocalyptic number.

It is an amenable number.

845560420 is an abundant number, since it is smaller than the sum of its proper divisors (1023573980).

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

845560420 is a wasteful number, since it uses less digits than its factorization.

845560420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2225187 (or 2225185 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 845560420 is about 29078.5216267953. The cubic root of 845560420 is about 945.6161523944.

The spelling of 845560420 in words is "eight hundred forty-five million, five hundred sixty thousand, four hundred twenty".