6140408540 has 36 divisors (see below), whose sum is σ = 15000143256. Its totient is φ = 2105282592.

The previous prime is 6140408537. The next prime is 6140408579. The reversal of 6140408540 is 458040416.

It is a junction number, because it is equal to n+sod(n) for n = 6140408497 and 6140408506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3131882 + ... + 3133841.

It is an arithmetic number, because the mean of its divisors is an integer number (416670646).

Almost surely, 2^6140408540 is an apocalyptic number.

It is an amenable number.

6140408540 is an abundant number, since it is smaller than the sum of its proper divisors (8859734716).

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

6140408540 is a wasteful number, since it uses less digits than its factorization.

6140408540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6265746 (or 6265737 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 6140408540 is about 78360.7589294540. The cubic root of 6140408540 is about 1831.1858439241.

Adding to 6140408540 its reverse (458040416), we get a palindrome (6598448956).

The spelling of 6140408540 in words is "six billion, one hundred forty million, four hundred eight thousand, five hundred forty".