140443640044 has 24 divisors (see below), whose sum is σ = 249478225920. Its totient is φ = 69164429136.

The previous prime is 140443640033. The next prime is 140443640059. The reversal of 140443640044 is 440046344041.

It is a junction number, because it is equal to n+sod(n) for n = 140443639991 and 140443640009.

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, 2232777 + ... + 2294815.

It is an arithmetic number, because the mean of its divisors is an integer number (10394926080).

Almost surely, 2^140443640044 is an apocalyptic number.

It is an amenable number.

140443640044 is a deficient number, since it is larger than the sum of its proper divisors (109034585876).

140443640044 is a wasteful number, since it uses less digits than its factorization.

140443640044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70557 (or 70555 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 140443640044 its reverse (440046344041), we get a palindrome (580489984085).

The spelling of 140443640044 in words is "one hundred forty billion, four hundred forty-three million, six hundred forty thousand, forty-four".