2219544 has 48 divisors (see below), whose sum is σ = 6224400. Its totient is φ = 713664.

The previous prime is 2219543. The next prime is 2219551. The reversal of 2219544 is 4459122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2219543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1557 + ... + 2619.

It is an arithmetic number, because the mean of its divisors is an integer number (129675).

2^2219544 is an apocalyptic number.

2219544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2219544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3112200).

2219544 is an abundant number, since it is smaller than the sum of its proper divisors (4004856).

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

2219544 is a wasteful number, since it uses less digits than its factorization.

2219544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104 (or 1097 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 2219544 is about 1489.8134111358. The cubic root of 2219544 is about 130.4431425366.

The spelling of 2219544 in words is "two million, two hundred nineteen thousand, five hundred forty-four".