3943143942 has 16 divisors (see below), whose sum is σ = 7898226672. Its totient is φ = 1312391520.

The previous prime is 3943143917. The next prime is 3943143959. The reversal of 3943143942 is 2493413493.

It is a junction number, because it is equal to n+sod(n) for n = 3943143894 and 3943143903.

It is a congruent number.

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, 493153 + ... + 501084.

It is an arithmetic number, because the mean of its divisors is an integer number (493639167).

Almost surely, 2^3943143942 is an apocalyptic number.

3943143942 is an abundant number, since it is smaller than the sum of its proper divisors (3955082730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3943143942 is a wasteful number, since it uses less digits than its factorization.

3943143942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994903.

The product of its digits is 279936, while the sum is 42.

The square root of 3943143942 is about 62794.4578923968. The cubic root of 3943143942 is about 1579.8440189445.

The spelling of 3943143942 in words is "three billion, nine hundred forty-three million, one hundred forty-three thousand, nine hundred forty-two".