3918692441 has 4 divisors (see below), whose sum is σ = 3918821172. Its totient is φ = 3918563712.

The previous prime is 3918692431. The next prime is 3918692443. The reversal of 3918692441 is 1442968193.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1748996041 + 2169696400 = 41821^2 + 46580^2 .

It is a cyclic number.

It is not a de Polignac number, because 3918692441 - 2⁶ = 3918692377 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3918692443) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 9725 + ... + 89061.

It is an arithmetic number, because the mean of its divisors is an integer number (979705293).

Almost surely, 2^3918692441 is an apocalyptic number.

It is an amenable number.

3918692441 is a deficient number, since it is larger than the sum of its proper divisors (128731).

3918692441 is an equidigital number, since it uses as much as digits as its factorization.

3918692441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128730.

The product of its digits is 373248, while the sum is 47.

The square root of 3918692441 is about 62599.4603890481. The cubic root of 3918692441 is about 1576.5716993686.

The spelling of 3918692441 in words is "three billion, nine hundred eighteen million, six hundred ninety-two thousand, four hundred forty-one".