6445614 has 48 divisors (see below), whose sum is σ = 15265152. Its totient is φ = 1777104.

The previous prime is 6445597. The next prime is 6445619. The reversal of 6445614 is 4165446.

It is a hoax number, since the sum of its digits (30) 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 (6445619) 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 23 ways as a sum of consecutive naturals, for example, 77617 + ... + 77699.

It is an arithmetic number, because the mean of its divisors is an integer number (318024).

Almost surely, 2^6445614 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6445614, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7632576).

6445614 is an abundant number, since it is smaller than the sum of its proper divisors (8819538).

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

6445614 is a wasteful number, since it uses less digits than its factorization.

6445614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181 (or 138 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 6445614 is about 2538.8213800896. The cubic root of 6445614 is about 186.1035958914.

The spelling of 6445614 in words is "six million, four hundred forty-five thousand, six hundred fourteen".