16542393 has 16 divisors (see below), whose sum is σ = 25823616. Its totient is φ = 9221760.

The previous prime is 16542391. The next prime is 16542397. The reversal of 16542393 is 39324561.

It is not a de Polignac number, because 16542393 - 2¹ = 16542391 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16542391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8746 + ... + 10467.

It is an arithmetic number, because the mean of its divisors is an integer number (1613976).

Almost surely, 2^16542393 is an apocalyptic number.

It is an amenable number.

16542393 is a deficient number, since it is larger than the sum of its proper divisors (9281223).

16542393 is a wasteful number, since it uses less digits than its factorization.

16542393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19264.

The product of its digits is 19440, while the sum is 33.

The square root of 16542393 is about 4067.2340724379. The cubic root of 16542393 is about 254.8000123634.

The spelling of 16542393 in words is "sixteen million, five hundred forty-two thousand, three hundred ninety-three".