4564644 has 48 divisors (see below), whose sum is σ = 12432000. Its totient is φ = 1303008.

The previous prime is 4564633. The next prime is 4564663. The reversal of 4564644 is 4464654.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3562 + ... + 4670.

It is an arithmetic number, because the mean of its divisors is an integer number (259000).

Almost surely, 2^4564644 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 4564644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6216000).

4564644 is an abundant number, since it is smaller than the sum of its proper divisors (7867356).

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

4564644 is a wasteful number, since it uses less digits than its factorization.

4564644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137 (or 1121 counting only the distinct ones).

The product of its digits is 46080, while the sum is 33.

The square root of 4564644 is about 2136.5027498227. The cubic root of 4564644 is about 165.8831616017.

The spelling of 4564644 in words is "four million, five hundred sixty-four thousand, six hundred forty-four".