3920685446 has 4 divisors (see below), whose sum is σ = 5881028172. Its totient is φ = 1960342722.

The previous prime is 3920685383. The next prime is 3920685451. The reversal of 3920685446 is 6445860293.

3920685446 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3920685446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 980171360 + ... + 980171363.

It is an arithmetic number, because the mean of its divisors is an integer number (1470257043).

Almost surely, 2^3920685446 is an apocalyptic number.

3920685446 is a deficient number, since it is larger than the sum of its proper divisors (1960342726).

3920685446 is a wasteful number, since it uses less digits than its factorization.

3920685446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1960342725.

The product of its (nonzero) digits is 1244160, while the sum is 47.

The square root of 3920685446 is about 62615.3770730481. The cubic root of 3920685446 is about 1576.8389298964.

The spelling of 3920685446 in words is "three billion, nine hundred twenty million, six hundred eighty-five thousand, four hundred forty-six".