16422219 has 24 divisors (see below), whose sum is σ = 26717184. Its totient is φ = 9630000.

The previous prime is 16422199. The next prime is 16422227. The reversal of 16422219 is 91222461.

16422219 is a `hidden beast` number, since 1 + 642 + 2 + 2 + 19 = 666.

It is not a de Polignac number, because 16422219 - 2⁸ = 16421963 is a prime.

It is a super-2 number, since 2×16422219² = 539378553767922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16422192 and 16422201.

It is not an unprimeable number, because it can be changed into a prime (16422269) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 394 + ... + 5744.

It is an arithmetic number, because the mean of its divisors is an integer number (1113216).

Almost surely, 2^16422219 is an apocalyptic number.

16422219 is a deficient number, since it is larger than the sum of its proper divisors (10294965).

16422219 is a wasteful number, since it uses less digits than its factorization.

16422219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5399 (or 5396 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 16422219 is about 4052.4337132148. The cubic root of 16422219 is about 254.1815047983.

It can be divided in two parts, 16422 and 219, that added together give a square (16641 = 129²).

The spelling of 16422219 in words is "sixteen million, four hundred twenty-two thousand, two hundred nineteen".