43431201044 has 48 divisors (see below), whose sum is σ = 100333054080. Its totient is φ = 15925877760.

The previous prime is 43431201043. The next prime is 43431201049. The reversal of 43431201044 is 44010213434.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43431201041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4142129 + ... + 4152600.

It is an arithmetic number, because the mean of its divisors is an integer number (2090271960).

Almost surely, 2^43431201044 is an apocalyptic number.

43431201044 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

43431201044 is an abundant number, since it is smaller than the sum of its proper divisors (56901853036).

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

43431201044 is a wasteful number, since it uses less digits than its factorization.

43431201044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8294768 (or 8294766 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 43431201044 its reverse (44010213434), we get a palindrome (87441414478).

The spelling of 43431201044 in words is "forty-three billion, four hundred thirty-one million, two hundred one thousand, forty-four".