16387868 has 24 divisors (see below), whose sum is σ = 34202112. Its totient is φ = 6717744.

The previous prime is 16387867. The next prime is 16387873. The reversal of 16387868 is 86878361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16387867) 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 7 ways as a sum of consecutive naturals, for example, 12080 + ... + 13367.

It is an arithmetic number, because the mean of its divisors is an integer number (1425088).

Almost surely, 2^16387868 is an apocalyptic number.

It is an amenable number.

16387868 is an abundant number, since it is smaller than the sum of its proper divisors (17814244).

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

16387868 is a wasteful number, since it uses less digits than its factorization.

16387868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25481 (or 25479 counting only the distinct ones).

The product of its digits is 387072, while the sum is 47.

The square root of 16387868 is about 4048.1931772088. The cubic root of 16387868 is about 254.0041539404.

The spelling of 16387868 in words is "sixteen million, three hundred eighty-seven thousand, eight hundred sixty-eight".