2538216 has 40 divisors (see below), whose sum is σ = 7111170. Its totient is φ = 845856.

The previous prime is 2538203. The next prime is 2538241. The reversal of 2538216 is 6128352.

It can be written as a sum of positive squares in only one way, i.e., 1822500 + 715716 = 1350^2 + 846^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 2538216.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1311 + ... + 2606.

2^2538216 is an apocalyptic number.

It is an amenable number.

2538216 is an abundant number, since it is smaller than the sum of its proper divisors (4572954).

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

2538216 is a wasteful number, since it uses less digits than its factorization.

2538216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3935 (or 3922 counting only the distinct ones).

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

The square root of 2538216 is about 1593.1779561618. The cubic root of 2538216 is about 136.4089478511.

The spelling of 2538216 in words is "two million, five hundred thirty-eight thousand, two hundred sixteen".