16324138 has 4 divisors (see below), whose sum is σ = 24486210. Its totient is φ = 8162068.

The previous prime is 16324127. The next prime is 16324151. The reversal of 16324138 is 83142361.

16324138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 16265089 + 59049 = 4033^2 + 243^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4081033 + ... + 4081036.

Almost surely, 2^16324138 is an apocalyptic number.

16324138 is a deficient number, since it is larger than the sum of its proper divisors (8162072).

16324138 is an equidigital number, since it uses as much as digits as its factorization.

16324138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8162071.

The product of its digits is 3456, while the sum is 28.

The square root of 16324138 is about 4040.3140967009. The cubic root of 16324138 is about 253.6744646437.

Adding to 16324138 its reverse (83142361), we get a palindrome (99466499).

The spelling of 16324138 in words is "sixteen million, three hundred twenty-four thousand, one hundred thirty-eight".