252805838 has 8 divisors (see below), whose sum is σ = 385425480. Its totient is φ = 124330680.

The previous prime is 252805831. The next prime is 252805843. The reversal of 252805838 is 838508252.

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

It is a junction number, because it is equal to n+sod(n) for n = 252805795 and 252805804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252805831) 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, 1035968 + ... + 1036211.

It is an arithmetic number, because the mean of its divisors is an integer number (48178185).

Almost surely, 2^252805838 is an apocalyptic number.

252805838 is a deficient number, since it is larger than the sum of its proper divisors (132619642).

252805838 is a wasteful number, since it uses less digits than its factorization.

252805838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2072242.

The product of its (nonzero) digits is 153600, while the sum is 41.

The square root of 252805838 is about 15899.8691189582. The cubic root of 252805838 is about 632.3085188521.

The spelling of 252805838 in words is "two hundred fifty-two million, eight hundred five thousand, eight hundred thirty-eight".