20463243 has 8 divisors (see below), whose sum is σ = 27731856. Its totient is φ = 13418400.

The previous prime is 20463239. The next prime is 20463251. The reversal of 20463243 is 34236402.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20463243 - 2² = 20463239 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (20463203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55728 + ... + 56093.

It is an arithmetic number, because the mean of its divisors is an integer number (3466482).

Almost surely, 2^20463243 is an apocalyptic number.

20463243 is a deficient number, since it is larger than the sum of its proper divisors (7268613).

20463243 is a wasteful number, since it uses less digits than its factorization.

20463243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111885.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 20463243 is about 4523.6316163012. The cubic root of 20463243 is about 273.5215111414.

Adding to 20463243 its reverse (34236402), we get a palindrome (54699645).

It can be divided in two parts, 20463 and 243, that added together give a triangular number (20706 = T₂₀₃).

The spelling of 20463243 in words is "twenty million, four hundred sixty-three thousand, two hundred forty-three".