6940488321 has 40 divisors (see below), whose sum is σ = 11753107520. Its totient is φ = 4046264928.

The previous prime is 6940488311. The next prime is 6940488341. The reversal of 6940488321 is 1238840496.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-6940488321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6940488301) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 153445 + ... + 193458.

It is an arithmetic number, because the mean of its divisors is an integer number (293827688).

Almost surely, 2^6940488321 is an apocalyptic number.

It is an amenable number.

6940488321 is a deficient number, since it is larger than the sum of its proper divisors (4812619199).

6940488321 is a wasteful number, since it uses less digits than its factorization.

6940488321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346947 (or 346938 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 6940488321 is about 83309.5932111062. The cubic root of 6940488321 is about 1907.4947116355.

The spelling of 6940488321 in words is "six billion, nine hundred forty million, four hundred eighty-eight thousand, three hundred twenty-one".