16722752 has 28 divisors (see below), whose sum is σ = 33998916. Its totient is φ = 8156160.

The previous prime is 16722751. The next prime is 16722773. The reversal of 16722752 is 25722761.

It can be written as a sum of positive squares in 2 ways, for example, as 6635776 + 10086976 = 2576^2 + 3176^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16722751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 563 + ... + 5810.

It is an arithmetic number, because the mean of its divisors is an integer number (1214247).

Almost surely, 2^16722752 is an apocalyptic number.

It is an amenable number.

16722752 is an abundant number, since it is smaller than the sum of its proper divisors (17276164).

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

16722752 is an equidigital number, since it uses as much as digits as its factorization.

16722752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6426 (or 6416 counting only the distinct ones).

The product of its digits is 11760, while the sum is 32.

The square root of 16722752 is about 4089.3461580062. The cubic root of 16722752 is about 255.7226814669.

Subtracting 16722752 from its reverse (25722761), we obtain a palindrome (9000009).

The spelling of 16722752 in words is "sixteen million, seven hundred twenty-two thousand, seven hundred fifty-two".