2199648 has 48 divisors (see below), whose sum is σ = 6302016. Its totient is φ = 666240.

The previous prime is 2199643. The next prime is 2199653. The reversal of 2199648 is 8469912.

It is an interprime number because it is at equal distance from previous prime (2199643) and next prime (2199653).

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-3 number, since 3×2199648³ = 31928669333168357376, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2199643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15 + ... + 2097.

It is an arithmetic number, because the mean of its divisors is an integer number (131292).

2^2199648 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 2199648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3151008).

2199648 is an abundant number, since it is smaller than the sum of its proper divisors (4102368).

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

2199648 is a wasteful number, since it uses less digits than its factorization.

2199648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2107 (or 2099 counting only the distinct ones).

The product of its digits is 31104, while the sum is 39.

The square root of 2199648 is about 1483.1210334966. The cubic root of 2199648 is about 130.0522078274.

The spelling of 2199648 in words is "two million, one hundred ninety-nine thousand, six hundred forty-eight".