4559646 has 48 divisors (see below), whose sum is σ = 11433744. Its totient is φ = 1201536.

The previous prime is 4559629. The next prime is 4559647. The reversal of 4559646 is 6469554.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4559647) 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, 3226 + ... + 4418.

It is an arithmetic number, because the mean of its divisors is an integer number (238203).

Almost surely, 2^4559646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4559646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5716872).

4559646 is an abundant number, since it is smaller than the sum of its proper divisors (6874098).

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

4559646 is a wasteful number, since it uses less digits than its factorization.

4559646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225 (or 1218 counting only the distinct ones).

The product of its digits is 129600, while the sum is 39.

The square root of 4559646 is about 2135.3327609532. The cubic root of 4559646 is about 165.8225955916.

It can be divided in two parts, 455 and 9646, that added together give a palindrome (10101).

The spelling of 4559646 in words is "four million, five hundred fifty-nine thousand, six hundred forty-six".