2019216 has 80 divisors (see below), whose sum is σ = 5713920. Its totient is φ = 612480.

The previous prime is 2019211. The next prime is 2019217. The reversal of 2019216 is 6129102.

2019216 = T₂₇₃ + T₂₇₄ + ... + T₃₁₈.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2019192 and 2019201.

It is not an unprimeable number, because it can be changed into a prime (2019211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34195 + ... + 34253.

It is an arithmetic number, because the mean of its divisors is an integer number (71424).

2^2019216 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 2019216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2856960).

2019216 is an abundant number, since it is smaller than the sum of its proper divisors (3694704).

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

2019216 is a wasteful number, since it uses less digits than its factorization.

2019216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 2019216 is about 1420.9912033507. The cubic root of 2019216 is about 126.3943302483.

The spelling of 2019216 in words is "two million, nineteen thousand, two hundred sixteen".