104443131440 has 20 divisors (see below), whose sum is σ = 242830280784. Its totient is φ = 41777252544.

The previous prime is 104443131437. The next prime is 104443131449. The reversal of 104443131440 is 44131344401.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (104443131449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 652769492 + ... + 652769651.

Almost surely, 2^104443131440 is an apocalyptic number.

104443131440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104443131440 is an abundant number, since it is smaller than the sum of its proper divisors (138387149344).

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

104443131440 is a wasteful number, since it uses less digits than its factorization.

104443131440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305539156 (or 1305539150 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 104443131440 its reverse (44131344401), we get a palindrome (148574475841).

The spelling of 104443131440 in words is "one hundred four billion, four hundred forty-three million, one hundred thirty-one thousand, four hundred forty".