42005206 has 8 divisors (see below), whose sum is σ = 63272160. Its totient is φ = 20914488.

The previous prime is 42005191. The next prime is 42005207. The reversal of 42005206 is 60250024.

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

It is a super-2 number, since 2×42005206² = 3528874662204872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42005207) 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, 43461 + ... + 44416.

It is an arithmetic number, because the mean of its divisors is an integer number (7909020).

Almost surely, 2^42005206 is an apocalyptic number.

42005206 is a deficient number, since it is larger than the sum of its proper divisors (21266954).

42005206 is a wasteful number, since it uses less digits than its factorization.

42005206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88118.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 42005206 is about 6481.1423375822. The cubic root of 42005206 is about 347.6170259546.

The spelling of 42005206 in words is "forty-two million, five thousand, two hundred six".