43444990134 has 96 divisors (see below), whose sum is σ = 115933918464. Its totient is φ = 11450047680.

The previous prime is 43444990093. The next prime is 43444990139. The reversal of 43444990134 is 43109944434.

43444990134 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 43444990134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43444990139) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2564857 + ... + 2581739.

It is an arithmetic number, because the mean of its divisors is an integer number (1207644984).

Almost surely, 2^43444990134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43444990134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57966959232).

43444990134 is an abundant number, since it is smaller than the sum of its proper divisors (72488928330).

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

43444990134 is a wasteful number, since it uses less digits than its factorization.

43444990134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18482 (or 18479 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

The spelling of 43444990134 in words is "forty-three billion, four hundred forty-four million, nine hundred ninety thousand, one hundred thirty-four".