243015234 has 64 divisors (see below), whose sum is σ = 607813632. Its totient is φ = 62928000.

The previous prime is 243015197. The next prime is 243015257. The reversal of 243015234 is 432510342.

243015234 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 210559 + ... + 211709.

It is an arithmetic number, because the mean of its divisors is an integer number (9497088).

Almost surely, 2^243015234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243015234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303906816).

243015234 is an abundant number, since it is smaller than the sum of its proper divisors (364798398).

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

243015234 is a wasteful number, since it uses less digits than its factorization.

243015234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1631.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 243015234 is about 15588.9458912397. The cubic root of 243015234 is about 624.0381869710.

Adding to 243015234 its reverse (432510342), we get a palindrome (675525576).

The spelling of 243015234 in words is "two hundred forty-three million, fifteen thousand, two hundred thirty-four".