20362243 has 24 divisors (see below), whose sum is σ = 24993360. Its totient is φ = 16473600.

The previous prime is 20362241. The next prime is 20362253. The reversal of 20362243 is 34226302.

It is a happy number.

It is not a de Polignac number, because 20362243 - 2¹ = 20362241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20362241) 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 23 ways as a sum of consecutive naturals, for example, 38823 + ... + 39343.

It is an arithmetic number, because the mean of its divisors is an integer number (1041390).

Almost surely, 2^20362243 is an apocalyptic number.

20362243 is a deficient number, since it is larger than the sum of its proper divisors (4631117).

20362243 is a wasteful number, since it uses less digits than its factorization.

20362243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579 (or 568 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 20362243 is about 4512.4542102940. The cubic root of 20362243 is about 273.0707639464.

Adding to 20362243 its reverse (34226302), we get a palindrome (54588545).

It can be divided in two parts, 20 and 362243, that added together give a palindrome (362263).

The spelling of 20362243 in words is "twenty million, three hundred sixty-two thousand, two hundred forty-three".