444434140545440 has 48 divisors (see below), whose sum is σ = 1072315564653312. Its totient is φ = 173991237997824.

The previous prime is 444434140545433. The next prime is 444434140545481. The reversal of 444434140545440 is 44545041434444.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29550134804 + ... + 29550149843.

It is an arithmetic number, because the mean of its divisors is an integer number (22339907596944).

Almost surely, 2^{444434140545440} is an apocalyptic number.

444434140545440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

444434140545440 is an abundant number, since it is smaller than the sum of its proper divisors (627881424107872).

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

444434140545440 is a wasteful number, since it uses less digits than its factorization.

444434140545440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59100284709 (or 59100284701 counting only the distinct ones).

The product of its (nonzero) digits is 19660800, while the sum is 50.

Adding to 444434140545440 its reverse (44545041434444), we get a palindrome (488979181979884).

The spelling of 444434140545440 in words is "four hundred forty-four trillion, four hundred thirty-four billion, one hundred forty million, five hundred forty-five thousand, four hundred forty".