2219984 has 30 divisors (see below), whose sum is σ = 4663206. Its totient is φ = 1023360.

The previous prime is 2219977. The next prime is 2219999. The reversal of 2219984 is 4899122.

It can be written as a sum of positive squares in 3 ways, for example, as 29584 + 2190400 = 172^2 + 1480^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2294 + ... + 3114.

2^2219984 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 2219984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2331603).

2219984 is an abundant number, since it is smaller than the sum of its proper divisors (2443222).

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

2219984 is a wasteful number, since it uses less digits than its factorization.

2219984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855 (or 836 counting only the distinct ones).

The product of its digits is 10368, while the sum is 35.

The square root of 2219984 is about 1489.9610733170. The cubic root of 2219984 is about 130.4517616029.

The spelling of 2219984 in words is "two million, two hundred nineteen thousand, nine hundred eighty-four".