16422427 has 8 divisors (see below), whose sum is σ = 19226592. Its totient is φ = 13732800.

The previous prime is 16422409. The next prime is 16422443. The reversal of 16422427 is 72422461.

It is a happy number.

16422427 is nontrivially palindromic in base 6.

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

It is a cyclic number.

It is not a de Polignac number, because 16422427 - 2¹⁹ = 15898139 is a prime.

It is a super-2 number, since 2×16422427² = 539392217140658, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16422395 and 16422404.

It is not an unprimeable number, because it can be changed into a prime (16422457) 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, 28324 + ... + 28897.

It is an arithmetic number, because the mean of its divisors is an integer number (2403324).

Almost surely, 2^16422427 is an apocalyptic number.

16422427 is a deficient number, since it is larger than the sum of its proper divisors (2804165).

16422427 is an equidigital number, since it uses as much as digits as its factorization.

16422427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57269.

The product of its digits is 5376, while the sum is 28.

The square root of 16422427 is about 4052.4593767242. The cubic root of 16422427 is about 254.1825779283.

Adding to 16422427 its reverse (72422461), we get a palindrome (88844888).

The spelling of 16422427 in words is "sixteen million, four hundred twenty-two thousand, four hundred twenty-seven".