3920862042 has 12 divisors (see below), whose sum is σ = 8495201130. Its totient is φ = 1306954008.

The previous prime is 3920861993. The next prime is 3920862079. The reversal of 3920862042 is 2402680293.

3920862042 is a `hidden beast` number, since 3 + 9 + 20 + 8 + 620 + 4 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2096632521 + 1824229521 = 45789^2 + 42711^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3920861988 and 3920862006.

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 5 ways as a sum of consecutive naturals, for example, 108912817 + ... + 108912852.

Almost surely, 2^3920862042 is an apocalyptic number.

3920862042 is an abundant number, since it is smaller than the sum of its proper divisors (4574339088).

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

3920862042 is a wasteful number, since it uses less digits than its factorization.

3920862042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217825677 (or 217825674 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 3920862042 is about 62616.7872219583. The cubic root of 3920862042 is about 1576.8626042658.

The spelling of 3920862042 in words is "three billion, nine hundred twenty million, eight hundred sixty-two thousand, forty-two".