253898238 has 16 divisors (see below), whose sum is σ = 553959936. Its totient is φ = 76938840.

The previous prime is 253898237. The next prime is 253898251. The reversal of 253898238 is 832898352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253898233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1923406 + ... + 1923537.

It is an arithmetic number, because the mean of its divisors is an integer number (34622496).

Almost surely, 2^253898238 is an apocalyptic number.

253898238 is an abundant number, since it is smaller than the sum of its proper divisors (300061698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253898238 is a wasteful number, since it uses less digits than its factorization.

253898238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3846959.

The product of its digits is 829440, while the sum is 48.

The square root of 253898238 is about 15934.1845727982. The cubic root of 253898238 is about 633.2179668596.

The spelling of 253898238 in words is "two hundred fifty-three million, eight hundred ninety-eight thousand, two hundred thirty-eight".