20221732 has 12 divisors (see below), whose sum is σ = 35426160. Its totient is φ = 10099976.

The previous prime is 20221727. The next prime is 20221753. The reversal of 20221732 is 23712202.

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 3 ways as a sum of consecutive naturals, for example, 2619 + ... + 6877.

It is an arithmetic number, because the mean of its divisors is an integer number (2952180).

Almost surely, 2^20221732 is an apocalyptic number.

It is an amenable number.

20221732 is a deficient number, since it is larger than the sum of its proper divisors (15204428).

20221732 is a wasteful number, since it uses less digits than its factorization.

20221732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5450 (or 5448 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 20221732 is about 4496.8580142139. The cubic root of 20221732 is about 272.4411993320.

Adding to 20221732 its reverse (23712202), we get a palindrome (43933934).

The spelling of 20221732 in words is "twenty million, two hundred twenty-one thousand, seven hundred thirty-two".