252733646 has 8 divisors (see below), whose sum is σ = 413564184. Its totient is φ = 114878920.

The previous prime is 252733609. The next prime is 252733673. The reversal of 252733646 is 646337252.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 5743925 + ... + 5743968.

It is an arithmetic number, because the mean of its divisors is an integer number (51695523).

Almost surely, 2^252733646 is an apocalyptic number.

252733646 is a deficient number, since it is larger than the sum of its proper divisors (160830538).

252733646 is a wasteful number, since it uses less digits than its factorization.

252733646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11487906.

The product of its digits is 181440, while the sum is 38.

The square root of 252733646 is about 15897.5987494967. The cubic root of 252733646 is about 632.2483251442.

The spelling of 252733646 in words is "two hundred fifty-two million, seven hundred thirty-three thousand, six hundred forty-six".