16143868 has 12 divisors (see below), whose sum is σ = 30425080. Its totient is φ = 7450992.

The previous prime is 16143857. The next prime is 16143899. The reversal of 16143868 is 86834161.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155178 + ... + 155281.

Almost surely, 2^16143868 is an apocalyptic number.

It is an amenable number.

16143868 is a deficient number, since it is larger than the sum of its proper divisors (14281212).

16143868 is a wasteful number, since it uses less digits than its factorization.

16143868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310476 (or 310474 counting only the distinct ones).

The product of its digits is 27648, while the sum is 37.

The square root of 16143868 is about 4017.9432549502. The cubic root of 16143868 is about 252.7372171911.

The spelling of 16143868 in words is "sixteen million, one hundred forty-three thousand, eight hundred sixty-eight".