16280489 has 8 divisors (see below), whose sum is σ = 16528512. Its totient is φ = 16034400.

The previous prime is 16280483. The next prime is 16280497. The reversal of 16280489 is 98408261.

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

It is a cyclic number.

It is not a de Polignac number, because 16280489 - 2⁸ = 16280233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16280483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26789 + ... + 27389.

It is an arithmetic number, because the mean of its divisors is an integer number (2066064).

Almost surely, 2^16280489 is an apocalyptic number.

It is an amenable number.

16280489 is a deficient number, since it is larger than the sum of its proper divisors (248023).

16280489 is a wasteful number, since it uses less digits than its factorization.

16280489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 16280489 is about 4034.9087969866. The cubic root of 16280489 is about 253.4481633548.

The spelling of 16280489 in words is "sixteen million, two hundred eighty thousand, four hundred eighty-nine".