16027389 has 40 divisors (see below), whose sum is σ = 28575360. Its totient is φ = 8753184.

The previous prime is 16027373. The next prime is 16027391. The reversal of 16027389 is 98372061.

It is not a de Polignac number, because 16027389 - 2⁴ = 16027373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16027309) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 12427 + ... + 13655.

It is an arithmetic number, because the mean of its divisors is an integer number (714384).

Almost surely, 2^16027389 is an apocalyptic number.

It is an amenable number.

16027389 is a deficient number, since it is larger than the sum of its proper divisors (12547971).

16027389 is a wasteful number, since it uses less digits than its factorization.

16027389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271 (or 1262 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 16027389 is about 4003.4221611017. The cubic root of 16027389 is about 252.1279112537.

The spelling of 16027389 in words is "sixteen million, twenty-seven thousand, three hundred eighty-nine".