1144390736644 has 27 divisors (see below), whose sum is σ = 2011638384903. Its totient is φ = 569648265000.

The previous prime is 1144390736633. The next prime is 1144390736659. The reversal of 1144390736644 is 4466370934411.

The square root of 1144390736644 is 1069762.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1144390736591 and 1144390736600.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 537019459 + ... + 537021589.

Almost surely, 2^{1144390736644} is an apocalyptic number.

1144390736644 is the 1069762-nd square number.

It is an amenable number.

1144390736644 is a deficient number, since it is larger than the sum of its proper divisors (867247648259).

1144390736644 is an frugal number, since it uses more digits than its factorization.

1144390736644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4768 (or 2384 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 52.

The spelling of 1144390736644 in words is "one trillion, one hundred forty-four billion, three hundred ninety million, seven hundred thirty-six thousand, six hundred forty-four".