4431634812 has 36 divisors (see below), whose sum is σ = 12220569816. Its totient is φ = 1342919520.

The previous prime is 4431634789. The next prime is 4431634813. The reversal of 4431634812 is 2184361344.

4431634812 is a `hidden beast` number, since 4 + 4 + 3 + 1 + 634 + 8 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4431634813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5595103 + ... + 5595894.

Almost surely, 2^4431634812 is an apocalyptic number.

It is an amenable number.

4431634812 is an abundant number, since it is smaller than the sum of its proper divisors (7788935004).

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

4431634812 is a wasteful number, since it uses less digits than its factorization.

4431634812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11191018 (or 11191013 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 4431634812 is about 66570.5250993261. The cubic root of 4431634812 is about 1642.5602994202.

The spelling of 4431634812 in words is "four billion, four hundred thirty-one million, six hundred thirty-four thousand, eight hundred twelve".