1642216 has 16 divisors (see below), whose sum is σ = 3104640. Its totient is φ = 814320.

The previous prime is 1642211. The next prime is 1642231. The reversal of 1642216 is 6122461.

It is not an unprimeable number, because it can be changed into a prime (1642211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265 + ... + 1831.

It is an arithmetic number, because the mean of its divisors is an integer number (194040).

2^1642216 is an apocalyptic number.

It is an amenable number.

1642216 is a deficient number, since it is larger than the sum of its proper divisors (1462424).

1642216 is a wasteful number, since it uses less digits than its factorization.

1642216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1704 (or 1700 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

The square root of 1642216 is about 1281.4897580551. The cubic root of 1642216 is about 117.9804621487.

Adding to 1642216 its reverse (6122461), we get a palindrome (7764677).

The spelling of 1642216 in words is "one million, six hundred forty-two thousand, two hundred sixteen".