2043648 has 54 divisors (see below), whose sum is σ = 5898984. Its totient is φ = 680448.

The previous prime is 2043647. The next prime is 2043673. The reversal of 2043648 is 8463402.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2043647) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1861 + ... + 2747.

2^2043648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2043648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2949492).

2043648 is an abundant number, since it is smaller than the sum of its proper divisors (3855336).

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

2043648 is an equidigital number, since it uses as much as digits as its factorization.

2043648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909 (or 892 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 2043648 is about 1429.5621707362. The cubic root of 2043648 is about 126.9020676393.

The spelling of 2043648 in words is "two million, forty-three thousand, six hundred forty-eight".