1814216 has 8 divisors (see below), whose sum is σ = 3401670. Its totient is φ = 907104.

The previous prime is 1814179. The next prime is 1814233. The reversal of 1814216 is 6124181.

It can be written as a sum of positive squares in only one way, i.e., 1811716 + 2500 = 1346^2 + 50^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 1814191 and 1814200.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113381 + ... + 113396.

2^1814216 is an apocalyptic number.

It is an amenable number.

1814216 is a deficient number, since it is larger than the sum of its proper divisors (1587454).

1814216 is a wasteful number, since it uses less digits than its factorization.

1814216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226783 (or 226779 counting only the distinct ones).

The product of its digits is 384, while the sum is 23.

The square root of 1814216 is about 1346.9283574118. The cubic root of 1814216 is about 121.9634397302.

Adding to 1814216 its reverse (6124181), we get a palindrome (7938397).

The spelling of 1814216 in words is "one million, eight hundred fourteen thousand, two hundred sixteen".