4452440 has 32 divisors (see below), whose sum is σ = 10152000. Its totient is φ = 1757184.

The previous prime is 4452433. The next prime is 4452443. The reversal of 4452440 is 442544.

4452440 = 520² + 521² + ... + 535².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4452443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2456 + ... + 3864.

It is an arithmetic number, because the mean of its divisors is an integer number (317250).

Almost surely, 2^4452440 is an apocalyptic number.

4452440 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 4452440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5076000).

4452440 is an abundant number, since it is smaller than the sum of its proper divisors (5699560).

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

4452440 is a wasteful number, since it uses less digits than its factorization.

4452440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1499 (or 1495 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 4452440 is about 2110.0805671822. The cubic root of 4452440 is about 164.5126729026.

Adding to 4452440 its reverse (442544), we get a palindrome (4894984).

The spelling of 4452440 in words is "four million, four hundred fifty-two thousand, four hundred forty".