16434454 has 4 divisors (see below), whose sum is σ = 24651684. Its totient is φ = 8217226.

The previous prime is 16434413. The next prime is 16434463. The reversal of 16434454 is 45443461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45443461 = 7 ⋅6491923.

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 congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4108612 + ... + 4108615.

It is an arithmetic number, because the mean of its divisors is an integer number (6162921).

Almost surely, 2^16434454 is an apocalyptic number.

16434454 is a deficient number, since it is larger than the sum of its proper divisors (8217230).

16434454 is an equidigital number, since it uses as much as digits as its factorization.

16434454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8217229.

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

The square root of 16434454 is about 4053.9430188398. The cubic root of 16434454 is about 254.2446131742.

The spelling of 16434454 in words is "sixteen million, four hundred thirty-four thousand, four hundred fifty-four".