845818445 has 16 divisors (see below), whose sum is σ = 1059892992. Its totient is φ = 646757760.

The previous prime is 845818429. The next prime is 845818481. The reversal of 845818445 is 544818548.

It is a happy number.

It is not a de Polignac number, because 845818445 - 2⁴ = 845818429 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 845818445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310409 + ... + 313121.

It is an arithmetic number, because the mean of its divisors is an integer number (66243312).

Almost surely, 2^845818445 is an apocalyptic number.

It is an amenable number.

845818445 is a deficient number, since it is larger than the sum of its proper divisors (214074547).

845818445 is a wasteful number, since it uses less digits than its factorization.

845818445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5452.

The product of its digits is 819200, while the sum is 47.

The square root of 845818445 is about 29082.9579822961. The cubic root of 845818445 is about 945.7123283694.

The spelling of 845818445 in words is "eight hundred forty-five million, eight hundred eighteen thousand, four hundred forty-five".