381392041 has 4 divisors (see below), whose sum is σ = 391699972. Its totient is φ = 371084112.

The previous prime is 381392023. The next prime is 381392071. The reversal of 381392041 is 140293183.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 289136016 + 92256025 = 17004^2 + 9605^2 .

It is a cyclic number.

It is not a de Polignac number, because 381392041 - 2¹⁵ = 381359273 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 381391994 and 381392012.

It is not an unprimeable number, because it can be changed into a prime (381392071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5153910 + ... + 5153983.

It is an arithmetic number, because the mean of its divisors is an integer number (97924993).

Almost surely, 2^381392041 is an apocalyptic number.

It is an amenable number.

381392041 is a deficient number, since it is larger than the sum of its proper divisors (10307931).

381392041 is a wasteful number, since it uses less digits than its factorization.

381392041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10307930.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 381392041 is about 19529.2611483384. The cubic root of 381392041 is about 725.1990201142.

The spelling of 381392041 in words is "three hundred eighty-one million, three hundred ninety-two thousand, forty-one".