16438256 has 10 divisors (see below), whose sum is σ = 31849152. Its totient is φ = 8219120.

The previous prime is 16438243. The next prime is 16438259. The reversal of 16438256 is 65283461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16438259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 513680 + ... + 513711.

Almost surely, 2^16438256 is an apocalyptic number.

16438256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16438256 is a deficient number, since it is larger than the sum of its proper divisors (15410896).

16438256 is a wasteful number, since it uses less digits than its factorization.

16438256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027399 (or 1027393 counting only the distinct ones).

The product of its digits is 34560, while the sum is 35.

The square root of 16438256 is about 4054.4119178988. The cubic root of 16438256 is about 254.2642175875.

The spelling of 16438256 in words is "sixteen million, four hundred thirty-eight thousand, two hundred fifty-six".