42224254 has 4 divisors (see below), whose sum is σ = 63336384. Its totient is φ = 21112126.

The previous prime is 42224249. The next prime is 42224257. The reversal of 42224254 is 45242224.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42224257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10556062 + ... + 10556065.

It is an arithmetic number, because the mean of its divisors is an integer number (15834096).

Almost surely, 2^42224254 is an apocalyptic number.

42224254 is a deficient number, since it is larger than the sum of its proper divisors (21112130).

42224254 is a wasteful number, since it uses less digits than its factorization.

42224254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21112129.

The product of its digits is 5120, while the sum is 25.

The square root of 42224254 is about 6498.0192366597. The cubic root of 42224254 is about 348.2202276696.

Adding to 42224254 its reverse (45242224), we get a palindrome (87466478).

The spelling of 42224254 in words is "forty-two million, two hundred twenty-four thousand, two hundred fifty-four".