234840540 has 48 divisors (see below), whose sum is σ = 717333120. Its totient is φ = 56930880.

The previous prime is 234840527. The next prime is 234840547. The reversal of 234840540 is 45048432.

234840540 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 234840498 and 234840507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234840547) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 177250 + ... + 178569.

It is an arithmetic number, because the mean of its divisors is an integer number (14944440).

Almost surely, 2^234840540 is an apocalyptic number.

234840540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234840540 is an abundant number, since it is smaller than the sum of its proper divisors (482492580).

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

234840540 is a wasteful number, since it uses less digits than its factorization.

234840540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355842 (or 355840 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 234840540 is about 15324.5078224392. The cubic root of 234840540 is about 616.9609691728.

Adding to 234840540 its reverse (45048432), we get a palindrome (279888972).

The spelling of 234840540 in words is "two hundred thirty-four million, eight hundred forty thousand, five hundred forty".