21466126 has 24 divisors (see below), whose sum is σ = 35766360. Its totient is φ = 9654480.

The previous prime is 21466103. The next prime is 21466141. The reversal of 21466126 is 62166412.

It is a junction number, because it is equal to n+sod(n) for n = 21466094 and 21466103.

It is a congruent number.

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 in 11 ways as a sum of consecutive naturals, for example, 25480 + ... + 26308.

It is an arithmetic number, because the mean of its divisors is an integer number (1490265).

Almost surely, 2^21466126 is an apocalyptic number.

21466126 is a deficient number, since it is larger than the sum of its proper divisors (14300234).

21466126 is a wasteful number, since it uses less digits than its factorization.

21466126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960 (or 949 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 21466126 is about 4633.1550805040. The cubic root of 21466126 is about 277.9187779213.

The spelling of 21466126 in words is "twenty-one million, four hundred sixty-six thousand, one hundred twenty-six".