16489459 has 24 divisors (see below), whose sum is σ = 20297312. Its totient is φ = 13115520.

The previous prime is 16489453. The next prime is 16489463. The reversal of 16489459 is 95498461.

It is a happy number.

It is not a de Polignac number, because 16489459 - 2⁹ = 16488947 is a prime.

It is a super-2 number, since 2×16489459² = 543804516225362, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16489453) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 225847 + ... + 225919.

Almost surely, 2^16489459 is an apocalyptic number.

16489459 is a deficient number, since it is larger than the sum of its proper divisors (3807853).

16489459 is an equidigital number, since it uses as much as digits as its factorization.

16489459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 164 counting only the distinct ones).

The product of its digits is 311040, while the sum is 46.

The square root of 16489459 is about 4060.7214876177. The cubic root of 16489459 is about 254.5279437900.

The spelling of 16489459 in words is "sixteen million, four hundred eighty-nine thousand, four hundred fifty-nine".