16454434 has 4 divisors (see below), whose sum is σ = 24681654. Its totient is φ = 8227216.

The previous prime is 16454429. The next prime is 16454441. The reversal of 16454434 is 43445461.

16454434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43445461 = 2927 ⋅14843.

It can be written as a sum of positive squares in only one way, i.e., 15233409 + 1221025 = 3903^2 + 1105^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 16454396 and 16454405.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4113607 + ... + 4113610.

Almost surely, 2^16454434 is an apocalyptic number.

16454434 is a deficient number, since it is larger than the sum of its proper divisors (8227220).

16454434 is an equidigital number, since it uses as much as digits as its factorization.

16454434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8227219.

The product of its digits is 23040, while the sum is 31.

The square root of 16454434 is about 4056.4065378115. The cubic root of 16454434 is about 254.3476031120.

Adding to 16454434 its reverse (43445461), we get a palindrome (59899895).

The spelling of 16454434 in words is "sixteen million, four hundred fifty-four thousand, four hundred thirty-four".