845133856 has 24 divisors (see below), whose sum is σ = 1901551680. Its totient is φ = 362200128.

The previous prime is 845133841. The next prime is 845133859. The reversal of 845133856 is 658331548.

It is not an unprimeable number, because it can be changed into a prime (845133859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1886236 + ... + 1886683.

It is an arithmetic number, because the mean of its divisors is an integer number (79231320).

Almost surely, 2^845133856 is an apocalyptic number.

It is an amenable number.

845133856 is an abundant number, since it is smaller than the sum of its proper divisors (1056417824).

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

845133856 is a wasteful number, since it uses less digits than its factorization.

845133856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3772936 (or 3772928 counting only the distinct ones).

The product of its digits is 345600, while the sum is 43.

The square root of 845133856 is about 29071.1860095181. The cubic root of 845133856 is about 945.4571124460.

It can be divided in two parts, 845 and 133856, that multiplied together give a triangular number (113108320 = T₁₅₀₄₀).

The spelling of 845133856 in words is "eight hundred forty-five million, one hundred thirty-three thousand, eight hundred fifty-six".