20232236 has 24 divisors (see below), whose sum is σ = 36237264. Its totient is φ = 9881280.

The previous prime is 20232211. The next prime is 20232239. The reversal of 20232236 is 63223202.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20232239) 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 7 ways as a sum of consecutive naturals, for example, 68906 + ... + 69198.

It is an arithmetic number, because the mean of its divisors is an integer number (1509886).

Almost surely, 2^20232236 is an apocalyptic number.

It is an amenable number.

20232236 is a deficient number, since it is larger than the sum of its proper divisors (16005028).

20232236 is a wasteful number, since it uses less digits than its factorization.

20232236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641 (or 639 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 20232236 is about 4498.0257891657. The cubic root of 20232236 is about 272.4883635578.

Adding to 20232236 its reverse (63223202), we get a palindrome (83455438).

The spelling of 20232236 in words is "twenty million, two hundred thirty-two thousand, two hundred thirty-six".