3923443845 has 64 divisors (see below), whose sum is σ = 7291699200. Its totient is φ = 1997835840.

The previous prime is 3923443831. The next prime is 3923443919. The reversal of 3923443845 is 5483443293.

3923443845 is a `hidden beast` number, since 39 + 234 + 4 + 384 + 5 = 666.

It is not a de Polignac number, because 3923443845 - 2⁴ = 3923443829 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 3923443845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2666460 + ... + 2667930.

It is an arithmetic number, because the mean of its divisors is an integer number (113932800).

Almost surely, 2^3923443845 is an apocalyptic number.

It is an amenable number.

3923443845 is a deficient number, since it is larger than the sum of its proper divisors (3368255355).

3923443845 is a wasteful number, since it uses less digits than its factorization.

3923443845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2367 (or 2361 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 45.

The square root of 3923443845 is about 62637.3997305124. The cubic root of 3923443845 is about 1577.2086383180.

The spelling of 3923443845 in words is "three billion, nine hundred twenty-three million, four hundred forty-three thousand, eight hundred forty-five".