6414656 has 28 divisors (see below), whose sum is σ = 12912852. Its totient is φ = 3161088.

The previous prime is 6414641. The next prime is 6414659. The reversal of 6414656 is 6564146.

It can be written as a sum of positive squares in 2 ways, for example, as 5382400 + 1032256 = 2320^2 + 1016^2 .

It is a super-2 number, since 2×6414656² = 82295623196672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6414659) 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, 3986 + ... + 5358.

Almost surely, 2^6414656 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 6414656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6456426).

6414656 is an abundant number, since it is smaller than the sum of its proper divisors (6498196).

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

6414656 is a wasteful number, since it uses less digits than its factorization.

6414656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1458 (or 1448 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 6414656 is about 2532.7171180375. The cubic root of 6414656 is about 185.8051684790.

The spelling of 6414656 in words is "six million, four hundred fourteen thousand, six hundred fifty-six".