3781400041 has 2 divisors, whose sum is σ = 3781400042. Its totient is φ = 3781400040.

The previous prime is 3781400027. The next prime is 3781400099. The reversal of 3781400041 is 1400041873.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3713683600 + 67716441 = 60940^2 + 8229^2 .

It is an emirp because it is prime and its reverse (1400041873) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3781400041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3781399982 and 3781400009.

It is not a weakly prime, because it can be changed into another prime (3781400011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1890700020 + 1890700021.

It is an arithmetic number, because the mean of its divisors is an integer number (1890700021).

Almost surely, 2^3781400041 is an apocalyptic number.

It is an amenable number.

3781400041 is a deficient number, since it is larger than the sum of its proper divisors (1).

3781400041 is an equidigital number, since it uses as much as digits as its factorization.

3781400041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 3781400041 is about 61493.0893759616. The cubic root of 3781400041 is about 1557.9405270447.

The spelling of 3781400041 in words is "three billion, seven hundred eighty-one million, four hundred thousand, forty-one".