16331489 has 8 divisors (see below), whose sum is σ = 16789920. Its totient is φ = 15876000.

The previous prime is 16331429. The next prime is 16331501. The reversal of 16331489 is 98413361.

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 16331489 - 2¹² = 16327393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16331429) 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, 15014 + ... + 16064.

It is an arithmetic number, because the mean of its divisors is an integer number (2098740).

Almost surely, 2^16331489 is an apocalyptic number.

It is an amenable number.

16331489 is a deficient number, since it is larger than the sum of its proper divisors (458431).

16331489 is a wasteful number, since it uses less digits than its factorization.

16331489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1471.

The product of its digits is 15552, while the sum is 35.

The square root of 16331489 is about 4041.2237008114. The cubic root of 16331489 is about 253.7125367133.

The spelling of 16331489 in words is "sixteen million, three hundred thirty-one thousand, four hundred eighty-nine".