4244520 has 128 divisors (see below), whose sum is σ = 15114240. Its totient is φ = 933120.

The previous prime is 4244507. The next prime is 4244521. The reversal of 4244520 is 254424.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4244521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25959 + ... + 26121.

It is an arithmetic number, because the mean of its divisors is an integer number (118080).

Almost surely, 2^4244520 is an apocalyptic number.

4244520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4244520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7557120).

4244520 is an abundant number, since it is smaller than the sum of its proper divisors (10869720).

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

4244520 is a wasteful number, since it uses less digits than its factorization.

4244520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 4244520 is about 2060.2232888694. The cubic root of 4244520 is about 161.9109402267.

Adding to 4244520 its reverse (254424), we get a palindrome (4498944).

The spelling of 4244520 in words is "four million, two hundred forty-four thousand, five hundred twenty".