425210242 has 4 divisors (see below), whose sum is σ = 637815366. Its totient is φ = 212605120.

The previous prime is 425210173. The next prime is 425210243. The reversal of 425210242 is 242012524.

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

It can be written as a sum of positive squares in only one way, i.e., 425143161 + 67081 = 20619^2 + 259^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (425210243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106302559 + ... + 106302562.

Almost surely, 2^425210242 is an apocalyptic number.

425210242 is a deficient number, since it is larger than the sum of its proper divisors (212605124).

425210242 is a wasteful number, since it uses less digits than its factorization.

425210242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212605123.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 425210242 is about 20620.6266151153. The cubic root of 425210242 is about 751.9712540411.

Adding to 425210242 its reverse (242012524), we get a palindrome (667222766).

The spelling of 425210242 in words is "four hundred twenty-five million, two hundred ten thousand, two hundred forty-two".