235123434 has 144 divisors (see below), whose sum is σ = 662643072. Its totient is φ = 58563648.

The previous prime is 235123391. The next prime is 235123439. The reversal of 235123434 is 434321532.

235123434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 235123398 and 235123407.

It is not an unprimeable number, because it can be changed into a prime (235123439) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2976207 + ... + 2976285.

It is an arithmetic number, because the mean of its divisors is an integer number (4601688).

Almost surely, 2^235123434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 235123434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331321536).

235123434 is an abundant number, since it is smaller than the sum of its proper divisors (427519638).

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

235123434 is a wasteful number, since it uses less digits than its factorization.

235123434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209 (or 127 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 235123434 is about 15333.7351614015. The cubic root of 235123434 is about 617.2086046117.

Adding to 235123434 its reverse (434321532), we get a palindrome (669444966).

The spelling of 235123434 in words is "two hundred thirty-five million, one hundred twenty-three thousand, four hundred thirty-four".