21119632 has 20 divisors (see below), whose sum is σ = 41001840. Its totient is φ = 10538528.

The previous prime is 21119629. The next prime is 21119639. The reversal of 21119632 is 23691112.

It is a junction number, because it is equal to n+sod(n) for n = 21119597 and 21119606.

It is not an unprimeable number, because it can be changed into a prime (21119639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9543 + ... + 11545.

It is an arithmetic number, because the mean of its divisors is an integer number (2050092).

Almost surely, 2^21119632 is an apocalyptic number.

It is an amenable number.

21119632 is a deficient number, since it is larger than the sum of its proper divisors (19882208).

21119632 is a wasteful number, since it uses less digits than its factorization.

21119632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2670 (or 2664 counting only the distinct ones).

The product of its digits is 648, while the sum is 25.

The square root of 21119632 is about 4595.6100791951. The cubic root of 21119632 is about 276.4153237393.

The spelling of 21119632 in words is "twenty-one million, one hundred nineteen thousand, six hundred thirty-two".