8235143238 has 32 divisors (see below), whose sum is σ = 19641586176. Its totient is φ = 2250597888.

The previous prime is 8235143197. The next prime is 8235143341. The reversal of 8235143238 is 8323415328.

It is a junction number, because it is equal to n+sod(n) for n = 8235143196 and 8235143205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4261531 + ... + 4263462.

It is an arithmetic number, because the mean of its divisors is an integer number (613799568).

Almost surely, 2^8235143238 is an apocalyptic number.

8235143238 is an abundant number, since it is smaller than the sum of its proper divisors (11406442938).

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

8235143238 is a wasteful number, since it uses less digits than its factorization.

8235143238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8525028.

The product of its digits is 138240, while the sum is 39.

The square root of 8235143238 is about 90747.6899871286. The cubic root of 8235143238 is about 2019.4063574319.

The spelling of 8235143238 in words is "eight billion, two hundred thirty-five million, one hundred forty-three thousand, two hundred thirty-eight".