16229387 has 4 divisors (see below), whose sum is σ = 16390176. Its totient is φ = 16068600.

The previous prime is 16229383. The next prime is 16229413. The reversal of 16229387 is 78392261.

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

It is a cyclic number.

It is not a de Polignac number, because 16229387 - 2² = 16229383 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a zygodrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 16229387.

It is not an unprimeable number, because it can be changed into a prime (16229383) 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 3 ways as a sum of consecutive naturals, for example, 80243 + ... + 80444.

It is an arithmetic number, because the mean of its divisors is an integer number (4097544).

Almost surely, 2^16229387 is an apocalyptic number.

16229387 is a deficient number, since it is larger than the sum of its proper divisors (160789).

16229387 is a wasteful number, since it uses less digits than its factorization.

16229387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160788.

The product of its digits is 36288, while the sum is 38.

The square root of 16229387 is about 4028.5713348531. The cubic root of 16229387 is about 253.1827068959.

The spelling of 16229387 in words is "sixteen million, two hundred twenty-nine thousand, three hundred eighty-seven".