16143938 has 8 divisors (see below), whose sum is σ = 24236688. Its totient is φ = 8065044.

The previous prime is 16143937. The next prime is 16143947. The reversal of 16143938 is 83934161.

16143938 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 16143898 and 16143907.

It is not an unprimeable number, because it can be changed into a prime (16143937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245 + ... + 5687.

It is an arithmetic number, because the mean of its divisors is an integer number (3029586).

Almost surely, 2^16143938 is an apocalyptic number.

16143938 is a deficient number, since it is larger than the sum of its proper divisors (8092750).

16143938 is a wasteful number, since it uses less digits than its factorization.

16143938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6928.

The product of its digits is 15552, while the sum is 35.

The square root of 16143938 is about 4017.9519658652. The cubic root of 16143938 is about 252.7375824810.

The spelling of 16143938 in words is "sixteen million, one hundred forty-three thousand, nine hundred thirty-eight".