6417940 has 24 divisors (see below), whose sum is σ = 13547520. Its totient is φ = 2553888.

The previous prime is 6417937. The next prime is 6417947. The reversal of 6417940 is 497146.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6417947) 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 7 ways as a sum of consecutive naturals, for example, 3741 + ... + 5179.

It is an arithmetic number, because the mean of its divisors is an integer number (564480).

Almost surely, 2^6417940 is an apocalyptic number.

It is an amenable number.

6417940 is an abundant number, since it is smaller than the sum of its proper divisors (7129580).

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

6417940 is a wasteful number, since it uses less digits than its factorization.

6417940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1671 (or 1669 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 6417940 is about 2533.3653506749. The cubic root of 6417940 is about 185.8368708843.

The spelling of 6417940 in words is "six million, four hundred seventeen thousand, nine hundred forty".