21141726 has 16 divisors (see below), whose sum is σ = 43426704. Its totient is φ = 6856704.

The previous prime is 21141713. The next prime is 21141733. The reversal of 21141726 is 62714112.

It is a junction number, because it is equal to n+sod(n) for n = 21141696 and 21141705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47395 + ... + 47838.

It is an arithmetic number, because the mean of its divisors is an integer number (2714169).

Almost surely, 2^21141726 is an apocalyptic number.

21141726 is an abundant number, since it is smaller than the sum of its proper divisors (22284978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21141726 is a wasteful number, since it uses less digits than its factorization.

21141726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95275.

The product of its digits is 672, while the sum is 24.

The square root of 21141726 is about 4598.0132666185. The cubic root of 21141726 is about 276.5116794550.

Adding to 21141726 its reverse (62714112), we get a palindrome (83855838).

The spelling of 21141726 in words is "twenty-one million, one hundred forty-one thousand, seven hundred twenty-six".