2443530 has 32 divisors (see below), whose sum is σ = 5992704. Its totient is φ = 637376.

The previous prime is 2443501. The next prime is 2443531. The reversal of 2443530 is 353442.

It is a happy number.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2443497 and 2443506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2443531) 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, 544 + ... + 2276.

It is an arithmetic number, because the mean of its divisors is an integer number (187272).

2^2443530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2443530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2996352).

2443530 is an abundant number, since it is smaller than the sum of its proper divisors (3549174).

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

2443530 is a wasteful number, since it uses less digits than its factorization.

2443530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1790.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 2443530 is about 1563.1794522703. The cubic root of 2443530 is about 134.6912009129.

Adding to 2443530 its reverse (353442), we get a palindrome (2796972).

The spelling of 2443530 in words is "two million, four hundred forty-three thousand, five hundred thirty".