20201232 has 20 divisors (see below), whose sum is σ = 52186640. Its totient is φ = 6733728.

The previous prime is 20201231. The next prime is 20201239. The reversal of 20201232 is 23210202.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (20201231) by changing a digit.

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, 210382 + ... + 210477.

It is an arithmetic number, because the mean of its divisors is an integer number (2609332).

Almost surely, 2^20201232 is an apocalyptic number.

It is an amenable number.

20201232 is an abundant number, since it is smaller than the sum of its proper divisors (31985408).

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

20201232 is a wasteful number, since it uses less digits than its factorization.

20201232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420870 (or 420864 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 20201232 is about 4494.5780669602. The cubic root of 20201232 is about 272.3491047981.

Adding to 20201232 its reverse (23210202), we get a palindrome (43411434).

The spelling of 20201232 in words is "twenty million, two hundred one thousand, two hundred thirty-two".