3943624946 has 16 divisors (see below), whose sum is σ = 6432687576. Its totient is φ = 1805665536.

The previous prime is 3943624897. The next prime is 3943624967. The reversal of 3943624946 is 6494263493.

It can be written as a sum of positive squares in 4 ways, for example, as 3521116921 + 422508025 = 59339^2 + 20555^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3943624894 and 3943624903.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1566161 + ... + 1568676.

Almost surely, 2^3943624946 is an apocalyptic number.

3943624946 is a deficient number, since it is larger than the sum of its proper divisors (2489062630).

3943624946 is a wasteful number, since it uses less digits than its factorization.

3943624946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3134893.

The product of its digits is 3359232, while the sum is 50.

The square root of 3943624946 is about 62798.2877632822. The cubic root of 3943624946 is about 1579.9082553682.

The spelling of 3943624946 in words is "three billion, nine hundred forty-three million, six hundred twenty-four thousand, nine hundred forty-six".