16438234 has 8 divisors (see below), whose sum is σ = 24754068. Its totient is φ = 8186880.

The previous prime is 16438229. The next prime is 16438243. The reversal of 16438234 is 43283461.

It can be written as a sum of positive squares in 2 ways, for example, as 16378209 + 60025 = 4047^2 + 245^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 16438196 and 16438205.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15477 + ... + 16504.

Almost surely, 2^16438234 is an apocalyptic number.

16438234 is a deficient number, since it is larger than the sum of its proper divisors (8315834).

16438234 is a wasteful number, since it uses less digits than its factorization.

16438234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32240.

The product of its digits is 13824, while the sum is 31.

The square root of 16438234 is about 4054.4092048041. The cubic root of 16438234 is about 254.2641041567.

The spelling of 16438234 in words is "sixteen million, four hundred thirty-eight thousand, two hundred thirty-four".