6140940 has 48 divisors (see below), whose sum is σ = 18519648. Its totient is φ = 1511424.

The previous prime is 6140929. The next prime is 6140947. The reversal of 6140940 is 490416.

It is a super-2 number, since 2×6140940² = 75422288167200, which contains 22 as substring.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 6140940.

It is not an unprimeable number, because it can be changed into a prime (6140947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3157 + ... + 4716.

It is an arithmetic number, because the mean of its divisors is an integer number (385826).

Almost surely, 2^6140940 is an apocalyptic number.

6140940 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6140940 is an abundant number, since it is smaller than the sum of its proper divisors (12378708).

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

6140940 is a wasteful number, since it uses less digits than its factorization.

6140940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7898 (or 7896 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 6140940 is about 2478.0920079771. The cubic root of 6140940 is about 183.1238672871.

The spelling of 6140940 in words is "six million, one hundred forty thousand, nine hundred forty".