21832076 has 24 divisors (see below), whose sum is σ = 43965600. Its totient is φ = 9292032.

The previous prime is 21832051. The next prime is 21832079. The reversal of 21832076 is 67023812.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (21832079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1556 + ... + 6788.

It is an arithmetic number, because the mean of its divisors is an integer number (1831900).

Almost surely, 2^21832076 is an apocalyptic number.

It is an amenable number.

21832076 is an abundant number, since it is smaller than the sum of its proper divisors (22133524).

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

21832076 is a wasteful number, since it uses less digits than its factorization.

21832076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5393 (or 5391 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 21832076 is about 4672.4807115707. The cubic root of 21832076 is about 279.4891877244.

Adding to 21832076 its reverse (67023812), we get a palindrome (88855888).

The spelling of 21832076 in words is "twenty-one million, eight hundred thirty-two thousand, seventy-six".