16418416 has 40 divisors (see below), whose sum is σ = 37140480. Its totient is φ = 6884544.

The previous prime is 16418411. The next prime is 16418419. The reversal of 16418416 is 61481461.

16418416 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16418411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3705 + ... + 6823.

It is an arithmetic number, because the mean of its divisors is an integer number (928512).

Almost surely, 2^16418416 is an apocalyptic number.

16418416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16418416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18570240).

16418416 is an abundant number, since it is smaller than the sum of its proper divisors (20722064).

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

16418416 is a wasteful number, since it uses less digits than its factorization.

16418416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3181 (or 3175 counting only the distinct ones).

The product of its digits is 4608, while the sum is 31.

The square root of 16418416 is about 4051.9644618382. The cubic root of 16418416 is about 254.1618824624.

Adding to 16418416 its reverse (61481461), we get a palindrome (77899877).

The spelling of 16418416 in words is "sixteen million, four hundred eighteen thousand, four hundred sixteen".