2241664 has 32 divisors (see below), whose sum is σ = 4541040. Its totient is φ = 1102080.

The previous prime is 2241607. The next prime is 2241667. The reversal of 2241664 is 4661422.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (2241667) 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, 10519 + ... + 10729.

2^2241664 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 2241664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2270520).

2241664 is an abundant number, since it is smaller than the sum of its proper divisors (2299376).

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

2241664 is an equidigital number, since it uses as much as digits as its factorization.

2241664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308 (or 296 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 2241664 is about 1497.2187548919. The cubic root of 2241664 is about 130.8750435212.

The spelling of 2241664 in words is "two million, two hundred forty-one thousand, six hundred sixty-four".