16459668 has 18 divisors (see below), whose sum is σ = 41606474. Its totient is φ = 5486544.

The previous prime is 16459661. The next prime is 16459673. The reversal of 16459668 is 86695461.

It can be written as a sum of positive squares in only one way, i.e., 9072144 + 7387524 = 3012^2 + 2718^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16459661) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 228571 + ... + 228642.

Almost surely, 2^16459668 is an apocalyptic number.

16459668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

16459668 is an abundant number, since it is smaller than the sum of its proper divisors (25146806).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16459668 is a wasteful number, since it uses less digits than its factorization.

16459668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457223 (or 457218 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 16459668 is about 4057.0516388136. The cubic root of 16459668 is about 254.3745687762.

It can be divided in two parts, 16 and 459668, that added together give a square (459684 = 678²).

The spelling of 16459668 in words is "sixteen million, four hundred fifty-nine thousand, six hundred sixty-eight".