4231444536 has 144 divisors (see below), whose sum is σ = 13063978200. Its totient is φ = 1282184640.

The previous prime is 4231444487. The next prime is 4231444537. The reversal of 4231444536 is 6354441324.

It is a super-2 number, since 2×4231444536² = 35810245722488510592, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 4231444536.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4231444537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 226230 + ... + 244218.

Almost surely, 2^4231444536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4231444536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6531989100).

4231444536 is an abundant number, since it is smaller than the sum of its proper divisors (8832533664).

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

4231444536 is a wasteful number, since it uses less digits than its factorization.

4231444536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18032 (or 18005 counting only the distinct ones).

The product of its digits is 138240, while the sum is 36.

The square root of 4231444536 is about 65049.5544642698. The cubic root of 4231444536 is about 1617.4451086182.

The spelling of 4231444536 in words is "four billion, two hundred thirty-one million, four hundred forty-four thousand, five hundred thirty-six".