3742241661 has 16 divisors (see below), whose sum is σ = 5662022400. Its totient is φ = 2441745504.

The previous prime is 3742241641. The next prime is 3742241677. The reversal of 3742241661 is 1661422473.

3742241661 is a `hidden beast` number, since 374 + 224 + 1 + 6 + 61 = 666.

It is not a de Polignac number, because 3742241661 - 2⁹ = 3742241149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3742241621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1473216 + ... + 1475753.

It is an arithmetic number, because the mean of its divisors is an integer number (353876400).

Almost surely, 2^3742241661 is an apocalyptic number.

It is an amenable number.

3742241661 is a deficient number, since it is larger than the sum of its proper divisors (1919780739).

3742241661 is a wasteful number, since it uses less digits than its factorization.

3742241661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2949025 (or 2949019 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 3742241661 is about 61173.8641986919. The cubic root of 3742241661 is about 1552.5440926589.

The spelling of 3742241661 in words is "three billion, seven hundred forty-two million, two hundred forty-one thousand, six hundred sixty-one".