16722234 has 16 divisors (see below), whose sum is σ = 37160640. Its totient is φ = 5574060.

The previous prime is 16722229. The next prime is 16722239. The reversal of 16722234 is 43222761.

It is an interprime number because it is at equal distance from previous prime (16722229) and next prime (16722239).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16722198 and 16722207.

It is not an unprimeable number, because it can be changed into a prime (16722239) 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, 154782 + ... + 154889.

It is an arithmetic number, because the mean of its divisors is an integer number (2322540).

Almost surely, 2^16722234 is an apocalyptic number.

16722234 is an abundant number, since it is smaller than the sum of its proper divisors (20438406).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16722234 is a wasteful number, since it uses less digits than its factorization.

16722234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309682 (or 309676 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 16722234 is about 4089.2828222073. The cubic root of 16722234 is about 255.7200410380.

Adding to 16722234 its reverse (43222761), we get a palindrome (59944995).

The spelling of 16722234 in words is "sixteen million, seven hundred twenty-two thousand, two hundred thirty-four".