16442541 has 32 divisors (see below), whose sum is σ = 25414400. Its totient is φ = 10497600.

The previous prime is 16442521. The next prime is 16442609. The reversal of 16442541 is 14524461.

It is not a de Polignac number, because 16442541 - 2⁵ = 16442509 is a prime.

It is a super-3 number, since 3×16442541³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16442501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108816 + ... + 108966.

It is an arithmetic number, because the mean of its divisors is an integer number (794200).

Almost surely, 2^16442541 is an apocalyptic number.

It is an amenable number.

16442541 is a deficient number, since it is larger than the sum of its proper divisors (8971859).

16442541 is a wasteful number, since it uses less digits than its factorization.

16442541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306 (or 300 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 16442541 is about 4054.9403201527. The cubic root of 16442541 is about 254.2863088912.

The spelling of 16442541 in words is "sixteen million, four hundred forty-two thousand, five hundred forty-one".