3943690429940 has 24 divisors (see below), whose sum is σ = 8457957349632. Its totient is φ = 1543912848800.

The previous prime is 3943690429883. The next prime is 3943690429979. The reversal of 3943690429940 is 499240963493.

3943690429940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 2097706736 + ... + 2097708615.

It is an arithmetic number, because the mean of its divisors is an integer number (352414889568).

Almost surely, 2^{3943690429940} is an apocalyptic number.

It is an amenable number.

3943690429940 is an abundant number, since it is smaller than the sum of its proper divisors (4514266919692).

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

3943690429940 is a wasteful number, since it uses less digits than its factorization.

3943690429940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4195415407 (or 4195415405 counting only the distinct ones).

The product of its (nonzero) digits is 45349632, while the sum is 62.

The spelling of 3943690429940 in words is "three trillion, nine hundred forty-three billion, six hundred ninety million, four hundred twenty-nine thousand, nine hundred forty".