6240140 has 12 divisors (see below), whose sum is σ = 13104336. Its totient is φ = 2496048.

The previous prime is 6240137. The next prime is 6240149. The reversal of 6240140 is 410426.

It is not an unprimeable number, because it can be changed into a prime (6240149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155984 + ... + 156023.

It is an arithmetic number, because the mean of its divisors is an integer number (1092028).

Almost surely, 2^6240140 is an apocalyptic number.

It is an amenable number.

6240140 is an abundant number, since it is smaller than the sum of its proper divisors (6864196).

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

6240140 is a wasteful number, since it uses less digits than its factorization.

6240140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312016 (or 312014 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 6240140 is about 2498.0272216291. The cubic root of 6240140 is about 184.1046584808.

Adding to 6240140 its reverse (410426), we get a palindrome (6650566).

The spelling of 6240140 in words is "six million, two hundred forty thousand, one hundred forty".