380365760644 has 27 divisors (see below), whose sum is σ = 668173055151. Its totient is φ = 189461913600.

The previous prime is 380365760627. The next prime is 380365760833. The reversal of 380365760644 is 446067563083.

The square root of 380365760644 is 616738.

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

It can be written as a sum of positive squares in 4 ways, for example, as 112787162244 + 267578598400 = 335838^2 + 517280^2 .

It is a super-2 number, since 2×380365760644² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 380365760591 and 380365760600.

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, 494623492 + ... + 494624260.

Almost surely, 2^380365760644 is an apocalyptic number.

380365760644 is the 616738-th square number.

It is an amenable number.

380365760644 is a deficient number, since it is larger than the sum of its proper divisors (287807294507).

380365760644 is an frugal number, since it uses more digits than its factorization.

380365760644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2344 (or 1172 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 52.

The spelling of 380365760644 in words is "three hundred eighty billion, three hundred sixty-five million, seven hundred sixty thousand, six hundred forty-four".