16320424 has 8 divisors (see below), whose sum is σ = 30600810. Its totient is φ = 8160208.

The previous prime is 16320413. The next prime is 16320431. The reversal of 16320424 is 42402361.

It is a happy number.

16320424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 16240900 + 79524 = 4030^2 + 282^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 16320395 and 16320404.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1020019 + ... + 1020034.

Almost surely, 2^16320424 is an apocalyptic number.

It is an amenable number.

16320424 is a deficient number, since it is larger than the sum of its proper divisors (14280386).

16320424 is a wasteful number, since it uses less digits than its factorization.

16320424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2040059 (or 2040055 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 16320424 is about 4039.8544528238. The cubic root of 16320424 is about 253.6552248648.

Adding to 16320424 its reverse (42402361), we get a palindrome (58722785).

The spelling of 16320424 in words is "sixteen million, three hundred twenty thousand, four hundred twenty-four".