3974046642 has 24 divisors (see below), whose sum is σ = 8843150316. Its totient is φ = 1288879776.

The previous prime is 3974046623. The next prime is 3974046653. The reversal of 3974046642 is 2466404793.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3941453961 + 32592681 = 62781^2 + 5709^2 .

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 2982853 + ... + 2984184.

Almost surely, 2^3974046642 is an apocalyptic number.

3974046642 is an abundant number, since it is smaller than the sum of its proper divisors (4869103674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3974046642 is a wasteful number, since it uses less digits than its factorization.

3974046642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5967082 (or 5967079 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 45.

The square root of 3974046642 is about 63040.0399904695. The cubic root of 3974046642 is about 1583.9604008504.

The spelling of 3974046642 in words is "three billion, nine hundred seventy-four million, forty-six thousand, six hundred forty-two".