2211648 has 28 divisors (see below), whose sum is σ = 5852160. Its totient is φ = 737152.

The previous prime is 2211647. The next prime is 2211667. The reversal of 2211648 is 8461122.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5568 + ... + 5951.

2^2211648 is an apocalyptic number.

It is an amenable number.

2211648 is an abundant number, since it is smaller than the sum of its proper divisors (3640512).

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

2211648 is a wasteful number, since it uses less digits than its factorization.

2211648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11534 (or 11524 counting only the distinct ones).

The product of its digits is 768, while the sum is 24.

The square root of 2211648 is about 1487.1610538203. The cubic root of 2211648 is about 130.2882754630.

The spelling of 2211648 in words is "two million, two hundred eleven thousand, six hundred forty-eight".