3681941042 has 8 divisors (see below), whose sum is σ = 5947750956. Its totient is φ = 1699357392.

The previous prime is 3681940979. The next prime is 3681941057. The reversal of 3681941042 is 2401491863.

It is a Cunningham number, because it is equal to 60679²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 3681941041 + 1 = 60679^2 + 1^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 3681940987 and 3681941005.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70806533 + ... + 70806584.

Almost surely, 2^3681941042 is an apocalyptic number.

3681941042 is a deficient number, since it is larger than the sum of its proper divisors (2265809914).

3681941042 is a wasteful number, since it uses less digits than its factorization.

3681941042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141613132.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 3681941042 is about 60679.0000082401. Note that the first 5 decimals coincide. The cubic root of 3681941042 is about 1544.1599231314.

The spelling of 3681941042 in words is "three billion, six hundred eighty-one million, nine hundred forty-one thousand, forty-two".