3784141385 has 4 divisors (see below), whose sum is σ = 4540969668. Its totient is φ = 3027313104.

The previous prime is 3784141381. The next prime is 3784141391. The reversal of 3784141385 is 5831414873.

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 2151011641 + 1633129744 = 46379^2 + 40412^2 .

It is a cyclic number.

It is not a de Polignac number, because 3784141385 - 2² = 3784141381 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3784141381) 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, 378414134 + ... + 378414143.

It is an arithmetic number, because the mean of its divisors is an integer number (1135242417).

Almost surely, 2^3784141385 is an apocalyptic number.

It is an amenable number.

3784141385 is a deficient number, since it is larger than the sum of its proper divisors (756828283).

3784141385 is an equidigital number, since it uses as much as digits as its factorization.

3784141385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756828282.

The product of its digits is 322560, while the sum is 44.

The square root of 3784141385 is about 61515.3751918982. The cubic root of 3784141385 is about 1558.3169149105.

The spelling of 3784141385 in words is "three billion, seven hundred eighty-four million, one hundred forty-one thousand, three hundred eighty-five".