4381564 has 12 divisors (see below), whose sum is σ = 8364888. Its totient is φ = 1991600.

The previous prime is 4381561. The next prime is 4381591. The reversal of 4381564 is 4651834.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4381561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49747 + ... + 49834.

It is an arithmetic number, because the mean of its divisors is an integer number (697074).

Almost surely, 2^4381564 is an apocalyptic number.

4381564 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

4381564 is a deficient number, since it is larger than the sum of its proper divisors (3983324).

4381564 is a wasteful number, since it uses less digits than its factorization.

4381564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99596 (or 99594 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 4381564 is about 2093.2185743491. The cubic root of 4381564 is about 163.6350699860.

It can be divided in two parts, 438 and 1564, that added together give a palindrome (2002).

The spelling of 4381564 in words is "four million, three hundred eighty-one thousand, five hundred sixty-four".