844845540 has 96 divisors (see below), whose sum is σ = 2949295104. Its totient is φ = 175551360.

The previous prime is 844845527. The next prime is 844845541. The reversal of 844845540 is 45548448.

844845540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 844845492 and 844845501.

It is not an unprimeable number, because it can be changed into a prime (844845541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86814 + ... + 96053.

It is an arithmetic number, because the mean of its divisors is an integer number (30721824).

Almost surely, 2^844845540 is an apocalyptic number.

It is an amenable number.

844845540 is an abundant number, since it is smaller than the sum of its proper divisors (2104449564).

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

844845540 is a wasteful number, since it uses less digits than its factorization.

844845540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182897 (or 182895 counting only the distinct ones).

The product of its (nonzero) digits is 409600, while the sum is 42.

The square root of 844845540 is about 29066.2267933077. The cubic root of 844845540 is about 945.3495865139.

The spelling of 844845540 in words is "eight hundred forty-four million, eight hundred forty-five thousand, five hundred forty".