16478459 has 8 divisors (see below), whose sum is σ = 16679520. Its totient is φ = 16278976.

The previous prime is 16478437. The next prime is 16478513. The reversal of 16478459 is 95487461.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16478459 is a prime.

It is a super-2 number, since 2×16478459² = 543079222029362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16478659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45722 + ... + 46080.

It is an arithmetic number, because the mean of its divisors is an integer number (2084940).

Almost surely, 2^16478459 is an apocalyptic number.

16478459 is a deficient number, since it is larger than the sum of its proper divisors (201061).

16478459 is a wasteful number, since it uses less digits than its factorization.

16478459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789.

The product of its digits is 241920, while the sum is 44.

The square root of 16478459 is about 4059.3668225476. The cubic root of 16478459 is about 254.4713332772.

The spelling of 16478459 in words is "sixteen million, four hundred seventy-eight thousand, four hundred fifty-nine".