16434418 has 32 divisors (see below), whose sum is σ = 33102720. Its totient is φ = 5909760.

The previous prime is 16434413. The next prime is 16434463. The reversal of 16434418 is 81443461.

It is a self number, because there is not a number n which added to its sum of digits gives 16434418.

It is not an unprimeable number, because it can be changed into a prime (16434413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2103 + ... + 6106.

It is an arithmetic number, because the mean of its divisors is an integer number (1034460).

Almost surely, 2^16434418 is an apocalyptic number.

16434418 is an abundant number, since it is smaller than the sum of its proper divisors (16668302).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16434418 is a wasteful number, since it uses less digits than its factorization.

16434418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8242.

The product of its digits is 9216, while the sum is 31.

The square root of 16434418 is about 4053.9385787158. The cubic root of 16434418 is about 254.2444275314.

Adding to 16434418 its reverse (81443461), we get a palindrome (97877879).

It can be divided in two parts, 16 and 434418, that added together give a palindrome (434434).

The spelling of 16434418 in words is "sixteen million, four hundred thirty-four thousand, four hundred eighteen".