3945344692 has 24 divisors (see below), whose sum is σ = 6929919360. Its totient is φ = 1965382080.

The previous prime is 3945344687. The next prime is 3945344693. The reversal of 3945344692 is 2964435493.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3945344693) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1945383 + ... + 1947409.

It is an arithmetic number, because the mean of its divisors is an integer number (288746640).

Almost surely, 2^3945344692 is an apocalyptic number.

It is an amenable number.

3945344692 is a deficient number, since it is larger than the sum of its proper divisors (2984574668).

3945344692 is a wasteful number, since it uses less digits than its factorization.

3945344692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3591 (or 3589 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 49.

The square root of 3945344692 is about 62811.9788893806. The cubic root of 3945344692 is about 1580.1378787971.

The spelling of 3945344692 in words is "three billion, nine hundred forty-five million, three hundred forty-four thousand, six hundred ninety-two".