4561656 has 64 divisors (see below), whose sum is σ = 12804480. Its totient is φ = 1342080.

The previous prime is 4561651. The next prime is 4561663. The reversal of 4561656 is 6561654.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4561651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9535 + ... + 10001.

It is an arithmetic number, because the mean of its divisors is an integer number (200070).

Almost surely, 2^4561656 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 4561656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6402240).

4561656 is an abundant number, since it is smaller than the sum of its proper divisors (8242824).

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

4561656 is a wasteful number, since it uses less digits than its factorization.

4561656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524 (or 520 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

The square root of 4561656 is about 2135.8033617353. The cubic root of 4561656 is about 165.8469581885.

It can be divided in two parts, 456 and 1656, that added together give a palindrome (2112).

The spelling of 4561656 in words is "four million, five hundred sixty-one thousand, six hundred fifty-six".