4640544 has 96 divisors (see below), whose sum is σ = 13970880. Its totient is φ = 1497600.

The previous prime is 4640543. The next prime is 4640557. The reversal of 4640544 is 4450464.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (4640543) 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, 35359 + ... + 35489.

It is an arithmetic number, because the mean of its divisors is an integer number (145530).

Almost surely, 2^4640544 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 4640544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6985440).

4640544 is an abundant number, since it is smaller than the sum of its proper divisors (9330336).

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

4640544 is a wasteful number, since it uses less digits than its factorization.

4640544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 4640544 is about 2154.1921919829. The cubic root of 4640544 is about 166.7975363230.

It can be divided in two parts, 4640 and 544, that added together give a square (5184 = 72²).

The spelling of 4640544 in words is "four million, six hundred forty thousand, five hundred forty-four".