3942005155 has 12 divisors (see below), whose sum is σ = 5199538176. Its totient is φ = 2866912400.

The previous prime is 3942005149. The next prime is 3942005209. The reversal of 3942005155 is 5515002493.

It is not a de Polignac number, because 3942005155 - 2⁷ = 3942005027 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3942005155.

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, 3257251 + ... + 3258460.

It is an arithmetic number, because the mean of its divisors is an integer number (433294848).

Almost surely, 2^3942005155 is an apocalyptic number.

3942005155 is a deficient number, since it is larger than the sum of its proper divisors (1257533021).

3942005155 is a wasteful number, since it uses less digits than its factorization.

3942005155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6515738 (or 6515727 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 3942005155 is about 62785.3896619269. The cubic root of 3942005155 is about 1579.6919170448.

The spelling of 3942005155 in words is "three billion, nine hundred forty-two million, five thousand, one hundred fifty-five".