3920205601 has 16 divisors (see below), whose sum is σ = 4266662400. Its totient is φ = 3580262208.

The previous prime is 3920205589. The next prime is 3920205607. The reversal of 3920205601 is 1065020293.

3920205601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 3920205601 - 2⁹ = 3920205089 is a prime.

It is a super-2 number, since 2×3920205601² = 30736023908223542402, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3920205601.

It is not an unprimeable number, because it can be changed into a prime (3920205607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1255320 + ... + 1258438.

It is an arithmetic number, because the mean of its divisors is an integer number (266666400).

Almost surely, 2^3920205601 is an apocalyptic number.

It is an amenable number.

3920205601 is a deficient number, since it is larger than the sum of its proper divisors (346456799).

3920205601 is a wasteful number, since it uses less digits than its factorization.

3920205601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4128.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 3920205601 is about 62611.5452692233. The cubic root of 3920205601 is about 1576.7745985308.

Adding to 3920205601 its reverse (1065020293), we get a palindrome (4985225894).

The spelling of 3920205601 in words is "three billion, nine hundred twenty million, two hundred five thousand, six hundred one".