43444041397890 has 128 divisors (see below), whose sum is σ = 121213718784000. Its totient is φ = 9759082331136.

The previous prime is 43444041397879. The next prime is 43444041397927. The reversal of 43444041397890 is 9879314044434.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 44855866 + ... + 45814154.

It is an arithmetic number, because the mean of its divisors is an integer number (946982178000).

Almost surely, 2^{43444041397890} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43444041397890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60606859392000).

43444041397890 is an abundant number, since it is smaller than the sum of its proper divisors (77769677386110).

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

43444041397890 is a wasteful number, since it uses less digits than its factorization.

43444041397890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962024.

The product of its (nonzero) digits is 41803776, while the sum is 60.

The spelling of 43444041397890 in words is "forty-three trillion, four hundred forty-four billion, forty-one million, three hundred ninety-seven thousand, eight hundred ninety".