42025306 has 4 divisors (see below), whose sum is σ = 63037962. Its totient is φ = 21012652.

The previous prime is 42025273. The next prime is 42025327. The reversal of 42025306 is 60352024.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 35820225 + 6205081 = 5985^2 + 2491^2 .

It is a super-2 number, since 2×42025306² = 3532252688787272, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a zygodrome in base 4.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10506325 + ... + 10506328.

Almost surely, 2^42025306 is an apocalyptic number.

42025306 is a deficient number, since it is larger than the sum of its proper divisors (21012656).

42025306 is a wasteful number, since it uses less digits than its factorization.

42025306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21012655.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 42025306 is about 6482.6928046916. The cubic root of 42025306 is about 347.6724634325.

The spelling of 42025306 in words is "forty-two million, twenty-five thousand, three hundred six".