252784226 has 8 divisors (see below), whose sum is σ = 381447360. Its totient is φ = 125635108.

The previous prime is 252784223. The next prime is 252784267. The reversal of 252784226 is 622487252.

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

It is a self number, because there is not a number n which added to its sum of digits gives 252784226.

It is not an unprimeable number, because it can be changed into a prime (252784223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 378086 + ... + 378753.

It is an arithmetic number, because the mean of its divisors is an integer number (47680920).

Almost surely, 2^252784226 is an apocalyptic number.

252784226 is a deficient number, since it is larger than the sum of its proper divisors (128663134).

252784226 is a wasteful number, since it uses less digits than its factorization.

252784226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757008.

The product of its digits is 107520, while the sum is 38.

The square root of 252784226 is about 15899.1894761966. The cubic root of 252784226 is about 632.2904999630.

The spelling of 252784226 in words is "two hundred fifty-two million, seven hundred eighty-four thousand, two hundred twenty-six".