3920810345 has 16 divisors (see below), whose sum is σ = 4912607232. Its totient is φ = 2998395840.

The previous prime is 3920810297. The next prime is 3920810371. The reversal of 3920810345 is 5430180293.

It is not a de Polignac number, because 3920810345 - 2¹⁸ = 3920548201 is a prime.

It is a super-2 number, since 2×3920810345² = 30745507522918038050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190424 + ... + 210006.

It is an arithmetic number, because the mean of its divisors is an integer number (307037952).

Almost surely, 2^3920810345 is an apocalyptic number.

It is an amenable number.

3920810345 is a deficient number, since it is larger than the sum of its proper divisors (991796887).

3920810345 is a wasteful number, since it uses less digits than its factorization.

3920810345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21352.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 3920810345 is about 62616.3744159625. The cubic root of 3920810345 is about 1576.8556738661.

The spelling of 3920810345 in words is "three billion, nine hundred twenty million, eight hundred ten thousand, three hundred forty-five".