4219644 has 48 divisors (see below), whose sum is σ = 11571840. Its totient is φ = 1179840.

The previous prime is 4219609. The next prime is 4219651. The reversal of 4219644 is 4469124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 487 + ... + 2945.

It is an arithmetic number, because the mean of its divisors is an integer number (241080).

Almost surely, 2^4219644 is an apocalyptic number.

4219644 is a gapful number since it is divisible by the number (44) 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 4219644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5785920).

4219644 is an abundant number, since it is smaller than the sum of its proper divisors (7352196).

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

4219644 is a wasteful number, since it uses less digits than its factorization.

4219644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2490 (or 2488 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 4219644 is about 2054.1772075456. The cubic root of 4219644 is about 161.5940146625.

The spelling of 4219644 in words is "four million, two hundred nineteen thousand, six hundred forty-four".