21411622 has 8 divisors (see below), whose sum is σ = 32297400. Its totient is φ = 10645824.

The previous prime is 21411617. The next prime is 21411623. The reversal of 21411622 is 22611412.

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

It is a self number, because there is not a number n which added to its sum of digits gives 21411622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21411623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29547 + ... + 30262.

It is an arithmetic number, because the mean of its divisors is an integer number (4037175).

Almost surely, 2^21411622 is an apocalyptic number.

21411622 is a deficient number, since it is larger than the sum of its proper divisors (10885778).

21411622 is a wasteful number, since it uses less digits than its factorization.

21411622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59990.

The product of its digits is 192, while the sum is 19.

The square root of 21411622 is about 4627.2693891754. The cubic root of 21411622 is about 277.6833601359.

The spelling of 21411622 in words is "twenty-one million, four hundred eleven thousand, six hundred twenty-two".