243240414 has 32 divisors (see below), whose sum is σ = 493149600. Its totient is φ = 79976832.

The previous prime is 243240397. The next prime is 243240419. The reversal of 243240414 is 414042342.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243240419) 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, 139492 + ... + 141224.

It is an arithmetic number, because the mean of its divisors is an integer number (15410925).

Almost surely, 2^243240414 is an apocalyptic number.

243240414 is an abundant number, since it is smaller than the sum of its proper divisors (249909186).

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

243240414 is a wasteful number, since it uses less digits than its factorization.

243240414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2044.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 243240414 is about 15596.1666444034. The cubic root of 243240414 is about 624.2308738469.

Adding to 243240414 its reverse (414042342), we get a palindrome (657282756).

The spelling of 243240414 in words is "two hundred forty-three million, two hundred forty thousand, four hundred fourteen".