1020000140444 has 48 divisors (see below), whose sum is σ = 1850752562400. Its totient is φ = 491294662656.

The previous prime is 1020000140429. The next prime is 1020000140491. The reversal of 1020000140444 is 4440410000201.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218272892 + ... + 218277564.

It is an arithmetic number, because the mean of its divisors is an integer number (38557345050).

Almost surely, 2^{1020000140444} is an apocalyptic number.

It is an amenable number.

1020000140444 is a deficient number, since it is larger than the sum of its proper divisors (830752421956).

1020000140444 is a wasteful number, since it uses less digits than its factorization.

1020000140444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8582 (or 8580 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 1020000140444 its reverse (4440410000201), we get a palindrome (5460410140645).

The spelling of 1020000140444 in words is "one trillion, twenty billion, one hundred forty thousand, four hundred forty-four".