3940397012242 has 8 divisors (see below), whose sum is σ = 6010775103600. Its totient is φ = 1936805311044.

The previous prime is 3940397012203. The next prime is 3940397012243. The reversal of 3940397012242 is 2422107930493.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×3940397012242² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3940397012192 and 3940397012201.

It is not an unprimeable number, because it can be changed into a prime (3940397012243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16696597392 + ... + 16696597627.

It is an arithmetic number, because the mean of its divisors is an integer number (751346887950).

Almost surely, 2^{3940397012242} is an apocalyptic number.

3940397012242 is a deficient number, since it is larger than the sum of its proper divisors (2070378091358).

3940397012242 is a wasteful number, since it uses less digits than its factorization.

3940397012242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33393195080.

The product of its (nonzero) digits is 653184, while the sum is 46.

The spelling of 3940397012242 in words is "three trillion, nine hundred forty billion, three hundred ninety-seven million, twelve thousand, two hundred forty-two".