253886438 has 8 divisors (see below), whose sum is σ = 410124288. Its totient is φ = 117178344.

The previous prime is 253886411. The next prime is 253886441. The reversal of 253886438 is 834688352.

It is a happy number.

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 = 253886392 and 253886401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4882406 + ... + 4882457.

It is an arithmetic number, because the mean of its divisors is an integer number (51265536).

Almost surely, 2^253886438 is an apocalyptic number.

253886438 is a deficient number, since it is larger than the sum of its proper divisors (156237850).

253886438 is a wasteful number, since it uses less digits than its factorization.

253886438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9764878.

The product of its digits is 1105920, while the sum is 47.

The square root of 253886438 is about 15933.8142953908. The cubic root of 253886438 is about 633.2081570399.

The spelling of 253886438 in words is "two hundred fifty-three million, eight hundred eighty-six thousand, four hundred thirty-eight".