6940218442 has 8 divisors (see below), whose sum is σ = 10425571776. Its totient is φ = 3465027852.

The previous prime is 6940218419. The next prime is 6940218443. The reversal of 6940218442 is 2448120496.

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

It is a junction number, because it is equal to n+sod(n) for n = 6940218395 and 6940218404.

It is not an unprimeable number, because it can be changed into a prime (6940218443) 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 3 ways as a sum of consecutive naturals, for example, 2538978 + ... + 2541709.

It is an arithmetic number, because the mean of its divisors is an integer number (1303196472).

Almost surely, 2^6940218442 is an apocalyptic number.

6940218442 is a deficient number, since it is larger than the sum of its proper divisors (3485353334).

6940218442 is a wasteful number, since it uses less digits than its factorization.

6940218442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5081372.

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 6940218442 is about 83307.9734599276. The cubic root of 6940218442 is about 1907.4699871774.

The spelling of 6940218442 in words is "six billion, nine hundred forty million, two hundred eighteen thousand, four hundred forty-two".