20343463 has 8 divisors (see below), whose sum is σ = 23351328. Its totient is φ = 17361024.

The previous prime is 20343419. The next prime is 20343473. The reversal of 20343463 is 36434302.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20343463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20343403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4606 + ... + 7867.

It is an arithmetic number, because the mean of its divisors is an integer number (2918916).

Almost surely, 2^20343463 is an apocalyptic number.

20343463 is a deficient number, since it is larger than the sum of its proper divisors (3007865).

20343463 is a wasteful number, since it uses less digits than its factorization.

20343463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12713.

The product of its (nonzero) digits is 5184, while the sum is 25.

The square root of 20343463 is about 4510.3728227276. The cubic root of 20343463 is about 272.9867875012.

Adding to 20343463 its reverse (36434302), we get a palindrome (56777765).

The spelling of 20343463 in words is "twenty million, three hundred forty-three thousand, four hundred sixty-three".