16434455 has 4 divisors (see below), whose sum is σ = 19721352. Its totient is φ = 13147560.

The previous prime is 16434413. The next prime is 16434463. The reversal of 16434455 is 55443461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55443461 = 1471 ⋅37691.

It is not a de Polignac number, because 16434455 - 2⁸ = 16434199 is a prime.

It is a super-2 number, since 2×16434455² = 540182622294050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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, 1643441 + ... + 1643450.

It is an arithmetic number, because the mean of its divisors is an integer number (4930338).

Almost surely, 2^16434455 is an apocalyptic number.

16434455 is a deficient number, since it is larger than the sum of its proper divisors (3286897).

16434455 is an equidigital number, since it uses as much as digits as its factorization.

16434455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3286896.

The product of its digits is 28800, while the sum is 32.

The square root of 16434455 is about 4053.9431421765. The cubic root of 16434455 is about 254.2446183309.

The spelling of 16434455 in words is "sixteen million, four hundred thirty-four thousand, four hundred fifty-five".