21832468 has 12 divisors (see below), whose sum is σ = 43664992. Its totient is φ = 9356760.

The previous prime is 21832453. The next prime is 21832477. The reversal of 21832468 is 86423812.

21832468 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389838 + ... + 389893.

Almost surely, 2^21832468 is an apocalyptic number.

21832468 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

21832468 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21832468 is a wasteful number, since it uses less digits than its factorization.

21832468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779742 (or 779740 counting only the distinct ones).

The product of its digits is 18432, while the sum is 34.

The square root of 21832468 is about 4672.5226591211. The cubic root of 21832468 is about 279.4908604788.

The spelling of 21832468 in words is "twenty-one million, eight hundred thirty-two thousand, four hundred sixty-eight".