16642072 has 16 divisors (see below), whose sum is σ = 31278240. Its totient is φ = 8301216.

The previous prime is 16642069. The next prime is 16642091. The reversal of 16642072 is 27024661.

It is a self number, because there is not a number n which added to its sum of digits gives 16642072.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1458 + ... + 5950.

It is an arithmetic number, because the mean of its divisors is an integer number (1954890).

Almost surely, 2^16642072 is an apocalyptic number.

It is an amenable number.

16642072 is a deficient number, since it is larger than the sum of its proper divisors (14636168).

16642072 is a wasteful number, since it uses less digits than its factorization.

16642072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4962 (or 4958 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 16642072 is about 4079.4695733637. The cubic root of 16642072 is about 255.3107681083.

The spelling of 16642072 in words is "sixteen million, six hundred forty-two thousand, seventy-two".