42005234 has 8 divisors (see below), whose sum is σ = 63065520. Its totient is φ = 20983396.

The previous prime is 42005209. The next prime is 42005237. The reversal of 42005234 is 43250024.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42005237) 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, 6704 + ... + 11355.

It is an arithmetic number, because the mean of its divisors is an integer number (7883190).

Almost surely, 2^42005234 is an apocalyptic number.

42005234 is a deficient number, since it is larger than the sum of its proper divisors (21060286).

42005234 is a wasteful number, since it uses less digits than its factorization.

42005234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19224.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 42005234 is about 6481.1444976948. The cubic root of 42005234 is about 347.6171031932.

Adding to 42005234 its reverse (43250024), we get a palindrome (85255258).

The spelling of 42005234 in words is "forty-two million, five thousand, two hundred thirty-four".