16573842 has 32 divisors (see below), whose sum is σ = 37532160. Its totient is φ = 5419440.

The previous prime is 16573841. The next prime is 16573853. The reversal of 16573842 is 24837561.

16573842 is a `hidden beast` number, since 1 + 6 + 573 + 84 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 16573797 and 16573806.

It is not an unprimeable number, because it can be changed into a prime (16573841) 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, 34 + ... + 5757.

It is an arithmetic number, because the mean of its divisors is an integer number (1172880).

Almost surely, 2^16573842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16573842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18766080).

16573842 is an abundant number, since it is smaller than the sum of its proper divisors (20958318).

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

16573842 is a wasteful number, since it uses less digits than its factorization.

16573842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5855 (or 5849 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 16573842 is about 4071.0983775880. The cubic root of 16573842 is about 254.9613782338.

The spelling of 16573842 in words is "sixteen million, five hundred seventy-three thousand, eight hundred forty-two".