16220423 has 2 divisors, whose sum is σ = 16220424. Its totient is φ = 16220422.

The previous prime is 16220419. The next prime is 16220429. The reversal of 16220423 is 32402261.

16220423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (32402261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16220423 - 2² = 16220419 is a prime.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 16220395 and 16220404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16220429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8110211 + 8110212.

It is an arithmetic number, because the mean of its divisors is an integer number (8110212).

Almost surely, 2^16220423 is an apocalyptic number.

16220423 is a deficient number, since it is larger than the sum of its proper divisors (1).

16220423 is an equidigital number, since it uses as much as digits as its factorization.

16220423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 16220423 is about 4027.4586279688. The cubic root of 16220423 is about 253.1360847252.

Adding to 16220423 its reverse (32402261), we get a palindrome (48622684).

The spelling of 16220423 in words is "sixteen million, two hundred twenty thousand, four hundred twenty-three".