380444769 has 20 divisors (see below), whose sum is σ = 570706180. Its totient is φ = 252564480.

The previous prime is 380444761. The next prime is 380444783. The reversal of 380444769 is 967444083.

It can be written as a sum of positive squares in 2 ways, for example, as 118004769 + 262440000 = 10863^2 + 16200^2 .

It is not a de Polignac number, because 380444769 - 2³ = 380444761 is a prime.

It is a super-2 number, since 2×380444769² = 289476444518926722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (380444761) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9777 + ... + 29265.

It is an arithmetic number, because the mean of its divisors is an integer number (28535309).

Almost surely, 2^380444769 is an apocalyptic number.

It is an amenable number.

380444769 is a deficient number, since it is larger than the sum of its proper divisors (190261411).

380444769 is a wasteful number, since it uses less digits than its factorization.

380444769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19742 (or 19733 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 380444769 is about 19504.9934375790. The cubic root of 380444769 is about 724.5981246415.

The spelling of 380444769 in words is "three hundred eighty million, four hundred forty-four thousand, seven hundred sixty-nine".