21614116 has 6 divisors (see below), whose sum is σ = 37824710. Its totient is φ = 10807056.

The previous prime is 21614057. The next prime is 21614141. The reversal of 21614116 is 61141612.

It can be written as a sum of positive squares in only one way, i.e., 16974400 + 4639716 = 4120^2 + 2154^2 .

It is a super-2 number, since 2×21614116² = 934340020922912, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2701761 + ... + 2701768.

Almost surely, 2^21614116 is an apocalyptic number.

It is an amenable number.

21614116 is a deficient number, since it is larger than the sum of its proper divisors (16210594).

21614116 is a wasteful number, since it uses less digits than its factorization.

21614116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5403533 (or 5403531 counting only the distinct ones).

The product of its digits is 288, while the sum is 22.

The square root of 21614116 is about 4649.0984072183. The cubic root of 21614116 is about 278.5559840910. Note that the first 3 decimals are identical.

Adding to 21614116 its reverse (61141612), we get a palindrome (82755728).

The spelling of 21614116 in words is "twenty-one million, six hundred fourteen thousand, one hundred sixteen".