16434349 has 4 divisors (see below), whose sum is σ = 16784064. Its totient is φ = 16084636.

The previous prime is 16434347. The next prime is 16434361. The reversal of 16434349 is 94343461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94343461 = 97 ⋅972613.

It is a cyclic number.

It is not a de Polignac number, because 16434349 - 2¹ = 16434347 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16434347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174787 + ... + 174880.

It is an arithmetic number, because the mean of its divisors is an integer number (4196016).

Almost surely, 2^16434349 is an apocalyptic number.

It is an amenable number.

16434349 is a deficient number, since it is larger than the sum of its proper divisors (349715).

16434349 is an equidigital number, since it uses as much as digits as its factorization.

16434349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349714.

The product of its digits is 31104, while the sum is 34.

The square root of 16434349 is about 4053.9300684644. The cubic root of 16434349 is about 254.2440717153.

The spelling of 16434349 in words is "sixteen million, four hundred thirty-four thousand, three hundred forty-nine".