6221704140 has 36 divisors (see below), whose sum is σ = 18872503104. Its totient is φ = 1659121056.

The previous prime is 6221704133. The next prime is 6221704141. The reversal of 6221704140 is 414071226.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (6221704141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17282332 + ... + 17282691.

Almost surely, 2^6221704140 is an apocalyptic number.

6221704140 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6221704140 is an abundant number, since it is smaller than the sum of its proper divisors (12650798964).

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

6221704140 is a wasteful number, since it uses less digits than its factorization.

6221704140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34565038 (or 34565033 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 6221704140 is about 78877.7797608427. The cubic root of 6221704140 is about 1839.2317346383.

Adding to 6221704140 its reverse (414071226), we get a palindrome (6635775366).

The spelling of 6221704140 in words is "six billion, two hundred twenty-one million, seven hundred four thousand, one hundred forty".