16543242 has 24 divisors (see below), whose sum is σ = 36195744. Its totient is φ = 5460264.

The previous prime is 16543229. The next prime is 16543249. The reversal of 16543242 is 24234561.

16543242 is a `hidden beast` number, since 1 + 654 + 3 + 2 + 4 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (16543249) 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 11 ways as a sum of consecutive naturals, for example, 2608 + ... + 6315.

It is an arithmetic number, because the mean of its divisors is an integer number (1508156).

Almost surely, 2^16543242 is an apocalyptic number.

16543242 is an abundant number, since it is smaller than the sum of its proper divisors (19652502).

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

16543242 is a wasteful number, since it uses less digits than its factorization.

16543242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9034 (or 9031 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 16543242 is about 4067.3384417823. The cubic root of 16543242 is about 254.8043712956.

The spelling of 16543242 in words is "sixteen million, five hundred forty-three thousand, two hundred forty-two".