16442516 has 24 divisors (see below), whose sum is σ = 30174144. Its totient is φ = 7824960.

The previous prime is 16442513. The next prime is 16442521. The reversal of 16442516 is 61524461.

It is a super-3 number, since 3×16442516³ (a number of 23 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16442513) 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 7 ways as a sum of consecutive naturals, for example, 28511 + ... + 29081.

It is an arithmetic number, because the mean of its divisors is an integer number (1257256).

Almost surely, 2^16442516 is an apocalyptic number.

It is an amenable number.

16442516 is a deficient number, since it is larger than the sum of its proper divisors (13731628).

16442516 is a wasteful number, since it uses less digits than its factorization.

16442516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911 (or 909 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 16442516 is about 4054.9372374921. The cubic root of 16442516 is about 254.2861800149.

Adding to 16442516 its reverse (61524461), we get a palindrome (77966977).

The spelling of 16442516 in words is "sixteen million, four hundred forty-two thousand, five hundred sixteen".