234235540 has 96 divisors (see below), whose sum is σ = 620524800. Its totient is φ = 72145920.

The previous prime is 234235511. The next prime is 234235541. The reversal of 234235540 is 45532432.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 234235499 and 234235508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234235541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 136206 + ... + 137914.

It is an arithmetic number, because the mean of its divisors is an integer number (6463800).

Almost surely, 2^234235540 is an apocalyptic number.

234235540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 234235540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (310262400).

234235540 is an abundant number, since it is smaller than the sum of its proper divisors (386289260).

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

234235540 is a wasteful number, since it uses less digits than its factorization.

234235540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1825 (or 1823 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 234235540 is about 15304.7554701145. The cubic root of 234235540 is about 616.4307052755.

Adding to 234235540 its reverse (45532432), we get a palindrome (279767972).

The spelling of 234235540 in words is "two hundred thirty-four million, two hundred thirty-five thousand, five hundred forty".