234831540 has 48 divisors (see below), whose sum is σ = 696209472. Its totient is φ = 58937856.

The previous prime is 234831539. The next prime is 234831547. The reversal of 234831540 is 45138432.

234831540 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 = 234831498 and 234831507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234831547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114094 + ... + 116133.

It is an arithmetic number, because the mean of its divisors is an integer number (14504364).

Almost surely, 2^234831540 is an apocalyptic number.

234831540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234831540 is an abundant number, since it is smaller than the sum of its proper divisors (461377932).

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

234831540 is a wasteful number, since it uses less digits than its factorization.

234831540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230256 (or 230254 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 234831540 is about 15324.2141723483. The cubic root of 234831540 is about 616.9530876266.

Adding to 234831540 its reverse (45138432), we get a palindrome (279969972).

The spelling of 234831540 in words is "two hundred thirty-four million, eight hundred thirty-one thousand, five hundred forty".