16623422 has 4 divisors (see below), whose sum is σ = 24935136. Its totient is φ = 8311710.

The previous prime is 16623419. The next prime is 16623449. The reversal of 16623422 is 22432661.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 16623391 and 16623400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4155854 + ... + 4155857.

It is an arithmetic number, because the mean of its divisors is an integer number (6233784).

Almost surely, 2^16623422 is an apocalyptic number.

16623422 is a deficient number, since it is larger than the sum of its proper divisors (8311714).

16623422 is an equidigital number, since it uses as much as digits as its factorization.

16623422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8311713.

The product of its digits is 3456, while the sum is 26.

The square root of 16623422 is about 4077.1830962075. The cubic root of 16623422 is about 255.2153608053.

The spelling of 16623422 in words is "sixteen million, six hundred twenty-three thousand, four hundred twenty-two".