252242434 has 4 divisors (see below), whose sum is σ = 378363654. Its totient is φ = 126121216.

The previous prime is 252242411. The next prime is 252242437. The reversal of 252242434 is 434242252.

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., 223652025 + 28590409 = 14955^2 + 5347^2 .

It is not an unprimeable number, because it can be changed into a prime (252242437) 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, 63060607 + ... + 63060610.

Almost surely, 2^252242434 is an apocalyptic number.

252242434 is a deficient number, since it is larger than the sum of its proper divisors (126121220).

252242434 is a wasteful number, since it uses less digits than its factorization.

252242434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126121219.

The product of its digits is 15360, while the sum is 28.

The square root of 252242434 is about 15882.1419840020. The cubic root of 252242434 is about 631.8384477984.

Adding to 252242434 its reverse (434242252), we get a palindrome (686484686).

The spelling of 252242434 in words is "two hundred fifty-two million, two hundred forty-two thousand, four hundred thirty-four".