252775438 has 8 divisors (see below), whose sum is σ = 379789632. Its totient is φ = 126178896.

The previous prime is 252775429. The next prime is 252775477. The reversal of 252775438 is 834577252.

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 = 252775394 and 252775403.

It is a congruent number.

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, 102895 + ... + 105322.

It is an arithmetic number, because the mean of its divisors is an integer number (47473704).

Almost surely, 2^252775438 is an apocalyptic number.

252775438 is a deficient number, since it is larger than the sum of its proper divisors (127014194).

252775438 is a wasteful number, since it uses less digits than its factorization.

252775438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208826.

The product of its digits is 470400, while the sum is 43.

The square root of 252775438 is about 15898.9131075052. The cubic root of 252775438 is about 632.2831727213.

The spelling of 252775438 in words is "two hundred fifty-two million, seven hundred seventy-five thousand, four hundred thirty-eight".