378761841 has 12 divisors (see below), whose sum is σ = 548056132. Its totient is φ = 252066816.

The previous prime is 378761833. The next prime is 378761849. The reversal of 378761841 is 148167873.

It is an interprime number because it is at equal distance from previous prime (378761833) and next prime (378761849).

It can be written as a sum of positive squares in 2 ways, for example, as 372335616 + 6426225 = 19296^2 + 2535^2 .

It is not a de Polignac number, because 378761841 - 2³ = 378761833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378761849) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31276 + ... + 41661.

Almost surely, 2^378761841 is an apocalyptic number.

It is an amenable number.

378761841 is a deficient number, since it is larger than the sum of its proper divisors (169294291).

378761841 is a wasteful number, since it uses less digits than its factorization.

378761841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73520 (or 73517 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 378761841 is about 19461.8046696600. The cubic root of 378761841 is about 723.5281059768.

The spelling of 378761841 in words is "three hundred seventy-eight million, seven hundred sixty-one thousand, eight hundred forty-one".