1622116 has 6 divisors (see below), whose sum is σ = 2838710. Its totient is φ = 811056.

The previous prime is 1622081. The next prime is 1622141. The reversal of 1622116 is 6112261.

It can be written as a sum of positive squares in only one way, i.e., 1612900 + 9216 = 1270^2 + 96^2 .

It is a super-3 number, since 3×1622116³ = 12804628383331370688, which contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1622093 and 1622102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202761 + ... + 202768.

2^1622116 is an apocalyptic number.

It is an amenable number.

1622116 is a deficient number, since it is larger than the sum of its proper divisors (1216594).

1622116 is a wasteful number, since it uses less digits than its factorization.

1622116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405533 (or 405531 counting only the distinct ones).

The product of its digits is 144, while the sum is 19.

The square root of 1622116 is about 1273.6231781811. The cubic root of 1622116 is about 117.4971419254.

Adding to 1622116 its reverse (6112261), we get a palindrome (7734377).

It can be divided in two parts, 162 and 2116, that added together give a triangular number (2278 = T₆₇).

The spelling of 1622116 in words is "one million, six hundred twenty-two thousand, one hundred sixteen".