252018746 has 8 divisors (see below), whose sum is σ = 432032160. Its totient is φ = 108008028.

The previous prime is 252018667. The next prime is 252018779. The reversal of 252018746 is 647810252.

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

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 9000656 + ... + 9000683.

It is an arithmetic number, because the mean of its divisors is an integer number (54004020).

Almost surely, 2^252018746 is an apocalyptic number.

252018746 is a deficient number, since it is larger than the sum of its proper divisors (180013414).

252018746 is a wasteful number, since it uses less digits than its factorization.

252018746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18001348.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 252018746 is about 15875.0982989083. The cubic root of 252018746 is about 631.6516216097.

Adding to 252018746 its reverse (647810252), we get a palindrome (899828998).

The spelling of 252018746 in words is "two hundred fifty-two million, eighteen thousand, seven hundred forty-six".