21114626 has 8 divisors (see below), whose sum is σ = 34108284. Its totient is φ = 9745200.

The previous prime is 21114623. The next prime is 21114647. The reversal of 21114626 is 62641112.

It can be written as a sum of positive squares in 2 ways, for example, as 20259001 + 855625 = 4501^2 + 925^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×21114626² = 891654862239752, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21114623) 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, 406025 + ... + 406076.

Almost surely, 2^21114626 is an apocalyptic number.

21114626 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

21114626 is a deficient number, since it is larger than the sum of its proper divisors (12993658).

21114626 is a wasteful number, since it uses less digits than its factorization.

21114626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812116.

The product of its digits is 576, while the sum is 23.

The square root of 21114626 is about 4595.0653967055. The cubic root of 21114626 is about 276.3934823793.

Adding to 21114626 its reverse (62641112), we get a palindrome (83755738).

The spelling of 21114626 in words is "twenty-one million, one hundred fourteen thousand, six hundred twenty-six".