42254 has 8 divisors (see below), whose sum is σ = 65208. Its totient is φ = 20520.

The previous prime is 42239. The next prime is 42257. The reversal of 42254 is 45224.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212 + ... + 359.

It is an arithmetic number, because the mean of its divisors is an integer number (8151).

2⁴²²⁵⁴ is an apocalyptic number.

42254 is a deficient number, since it is larger than the sum of its proper divisors (22954).

42254 is a wasteful number, since it uses less digits than its factorization.

42254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610.

The product of its digits is 320, while the sum is 17.

The square root of 42254 is about 205.5577777658. The cubic root of 42254 is about 34.8301979479.

Adding to 42254 its reverse (45224), we get a palindrome (87478).

It can be divided in two parts, 4225 and 4, that multiplied together give a square (16900 = 130²).

The spelling of 42254 in words is "forty-two thousand, two hundred fifty-four".