16718442 has 64 divisors (see below), whose sum is σ = 39312000. Its totient is φ = 4693248.

The previous prime is 16718419. The next prime is 16718473. The reversal of 16718442 is 24481761.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42784 + ... + 43172.

It is an arithmetic number, because the mean of its divisors is an integer number (614250).

Almost surely, 2^16718442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16718442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19656000).

16718442 is an abundant number, since it is smaller than the sum of its proper divisors (22593558).

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

16718442 is a wasteful number, since it uses less digits than its factorization.

16718442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455.

The product of its digits is 10752, while the sum is 33.

The square root of 16718442 is about 4088.8191449366. The cubic root of 16718442 is about 255.7007102137.

The spelling of 16718442 in words is "sixteen million, seven hundred eighteen thousand, four hundred forty-two".