6940140220 has 48 divisors (see below), whose sum is σ = 16236632160. Its totient is φ = 2474148096.

The previous prime is 6940140217. The next prime is 6940140239. The reversal of 6940140220 is 220410496.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 452682 + ... + 467761.

It is an arithmetic number, because the mean of its divisors is an integer number (338263170).

Almost surely, 2^6940140220 is an apocalyptic number.

It is an amenable number.

6940140220 is an abundant number, since it is smaller than the sum of its proper divisors (9296491940).

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

6940140220 is a wasteful number, since it uses less digits than its factorization.

6940140220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920494 (or 920492 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 6940140220 is about 83307.5039837349. The cubic root of 6940140220 is about 1907.4628208959.

The spelling of 6940140220 in words is "six billion, nine hundred forty million, one hundred forty thousand, two hundred twenty".