6416540 has 96 divisors (see below), whose sum is σ = 16087680. Its totient is φ = 2128896.

The previous prime is 6416539. The next prime is 6416567. The reversal of 6416540 is 456146.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 173402 + ... + 173438.

It is an arithmetic number, because the mean of its divisors is an integer number (167580).

Almost surely, 2^6416540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6416540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8043840).

6416540 is an abundant number, since it is smaller than the sum of its proper divisors (9671140).

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

6416540 is a wasteful number, since it uses less digits than its factorization.

6416540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 6416540 is about 2533.0890233073. The cubic root of 6416540 is about 185.8233571744.

The spelling of 6416540 in words is "six million, four hundred sixteen thousand, five hundred forty".