2443620 has 48 divisors (see below), whose sum is σ = 6914880. Its totient is φ = 644736.

The previous prime is 2443619. The next prime is 2443643. The reversal of 2443620 is 263442.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8194 + ... + 8486.

It is an arithmetic number, because the mean of its divisors is an integer number (144060).

2^2443620 is an apocalyptic number.

2443620 is a gapful number since it is divisible by the number (20) 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 2443620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3457440).

2443620 is an abundant number, since it is smaller than the sum of its proper divisors (4471260).

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

2443620 is a wasteful number, since it uses less digits than its factorization.

2443620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444 (or 442 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 2443620 is about 1563.2082394870. The cubic root of 2443620 is about 134.6928545396.

The spelling of 2443620 in words is "two million, four hundred forty-three thousand, six hundred twenty".