380440845 has 48 divisors (see below), whose sum is σ = 693896112. Its totient is φ = 192568320.

The previous prime is 380440817. The next prime is 380440871. The reversal of 380440845 is 548044083.

It can be written as a sum of positive squares in 8 ways, for example, as 61496964 + 318943881 = 7842^2 + 17859^2 .

It is not a de Polignac number, because 380440845 - 2⁷ = 380440717 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 65479 + ... + 71051.

It is an arithmetic number, because the mean of its divisors is an integer number (14456169).

Almost surely, 2^380440845 is an apocalyptic number.

It is an amenable number.

380440845 is a deficient number, since it is larger than the sum of its proper divisors (313455267).

380440845 is a wasteful number, since it uses less digits than its factorization.

380440845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5662 (or 5659 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 36.

The square root of 380440845 is about 19504.8928476934. The cubic root of 380440845 is about 724.5956334058.

The spelling of 380440845 in words is "three hundred eighty million, four hundred forty thousand, eight hundred forty-five".