16573042 has 8 divisors (see below), whose sum is σ = 24897132. Its totient is φ = 8274000.

The previous prime is 16573013. The next prime is 16573049. The reversal of 16573042 is 24037561.

It is a Cunningham number, because it is equal to 4071²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 16573041 + 1 = 4071^2 + 1^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×16573042² = 549331442267528, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16573042.

It is not an unprimeable number, because it can be changed into a prime (16573049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4509 + ... + 7312.

Almost surely, 2^16573042 is an apocalyptic number.

16573042 is a deficient number, since it is larger than the sum of its proper divisors (8324090).

16573042 is a wasteful number, since it uses less digits than its factorization.

16573042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12524.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 16573042 is about 4071.0001228199. Note that the first 3 decimals coincide. The cubic root of 16573042 is about 254.9572759384.

The spelling of 16573042 in words is "sixteen million, five hundred seventy-three thousand, forty-two".