6424540 has 12 divisors (see below), whose sum is σ = 13491576. Its totient is φ = 2569808.

The previous prime is 6424531. The next prime is 6424547. The reversal of 6424540 is 454246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6424547) 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 3 ways as a sum of consecutive naturals, for example, 160594 + ... + 160633.

It is an arithmetic number, because the mean of its divisors is an integer number (1124298).

Almost surely, 2^6424540 is an apocalyptic number.

It is an amenable number.

6424540 is an abundant number, since it is smaller than the sum of its proper divisors (7067036).

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

6424540 is a wasteful number, since it uses less digits than its factorization.

6424540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321236 (or 321234 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 6424540 is about 2534.6676310712. The cubic root of 6424540 is about 185.9005519174.

Adding to 6424540 its reverse (454246), we get a palindrome (6878786).

The spelling of 6424540 in words is "six million, four hundred twenty-four thousand, five hundred forty".