42005254 has 8 divisors (see below), whose sum is σ = 63619920. Its totient is φ = 20798616.

The previous prime is 42005237. The next prime is 42005269. The reversal of 42005254 is 45250024.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101749 + ... + 102160.

It is an arithmetic number, because the mean of its divisors is an integer number (7952490).

Almost surely, 2^42005254 is an apocalyptic number.

42005254 is a deficient number, since it is larger than the sum of its proper divisors (21614666).

42005254 is a wasteful number, since it uses less digits than its factorization.

42005254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204014.

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 42005254 is about 6481.1460406320. The cubic root of 42005254 is about 347.6171583636.

Adding to 42005254 its reverse (45250024), we get a palindrome (87255278).

The spelling of 42005254 in words is "forty-two million, five thousand, two hundred fifty-four".