252856342 has 16 divisors (see below), whose sum is σ = 396384480. Its totient is φ = 120745152.

The previous prime is 252856339. The next prime is 252856343. The reversal of 252856342 is 243658252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252856343) 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 in 7 ways as a sum of consecutive naturals, for example, 28738 + ... + 36490.

It is an arithmetic number, because the mean of its divisors is an integer number (24774030).

Almost surely, 2^252856342 is an apocalyptic number.

252856342 is a deficient number, since it is larger than the sum of its proper divisors (143528138).

252856342 is a wasteful number, since it uses less digits than its factorization.

252856342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8487.

The product of its digits is 115200, while the sum is 37.

The square root of 252856342 is about 15901.4572288203. The cubic root of 252856342 is about 632.3506222880.

The spelling of 252856342 in words is "two hundred fifty-two million, eight hundred fifty-six thousand, three hundred forty-two".