6217597940 has 24 divisors (see below), whose sum is σ = 13064329320. Its totient is φ = 2485634688.

The previous prime is 6217597927. The next prime is 6217597949. The reversal of 6217597940 is 497957126.

It can be written as a sum of positive squares in 4 ways, for example, as 367795684 + 5849802256 = 19178^2 + 76484^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6217597949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51107 + ... + 122666.

It is an arithmetic number, because the mean of its divisors is an integer number (544347055).

Almost surely, 2^6217597940 is an apocalyptic number.

It is an amenable number.

6217597940 is an abundant number, since it is smaller than the sum of its proper divisors (6846731380).

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

6217597940 is a wasteful number, since it uses less digits than its factorization.

6217597940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175571 (or 175569 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 50.

The square root of 6217597940 is about 78851.7465881384. The cubic root of 6217597940 is about 1838.8270269016.

The spelling of 6217597940 in words is "six billion, two hundred seventeen million, five hundred ninety-seven thousand, nine hundred forty".