16601442 has 48 divisors (see below), whose sum is σ = 39325440. Its totient is φ = 4641120.

The previous prime is 16601413. The next prime is 16601447. The reversal of 16601442 is 24410661.

It is not an unprimeable number, because it can be changed into a prime (16601447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8559 + ... + 10317.

It is an arithmetic number, because the mean of its divisors is an integer number (819280).

Almost surely, 2^16601442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16601442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19662720).

16601442 is an abundant number, since it is smaller than the sum of its proper divisors (22723998).

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

16601442 is a wasteful number, since it uses less digits than its factorization.

16601442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1799 (or 1788 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 16601442 is about 4074.4867161398. The cubic root of 16601442 is about 255.1028266581.

The spelling of 16601442 in words is "sixteen million, six hundred one thousand, four hundred forty-two".