845648256 has 64 divisors (see below), whose sum is σ = 2318745600. Its totient is φ = 272785920.

The previous prime is 845648233. The next prime is 845648317. The reversal of 845648256 is 652846548.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent 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, 23616 + ... + 47423.

It is an arithmetic number, because the mean of its divisors is an integer number (36230400).

Almost surely, 2^845648256 is an apocalyptic number.

It is an amenable number.

845648256 is an abundant number, since it is smaller than the sum of its proper divisors (1473097344).

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

845648256 is a wasteful number, since it uses less digits than its factorization.

845648256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71087 (or 71075 counting only the distinct ones).

The product of its digits is 1843200, while the sum is 48.

The square root of 845648256 is about 29080.0319119495. The cubic root of 845648256 is about 945.6488944916.

The spelling of 845648256 in words is "eight hundred forty-five million, six hundred forty-eight thousand, two hundred fifty-six".