243641434 has 16 divisors (see below), whose sum is σ = 375217920. Its totient is φ = 118582240.

The previous prime is 243641423. The next prime is 243641449. The reversal of 243641434 is 434146342.

243641434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×243641434² = 118722296723152712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243641396 and 243641405.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36177 + ... + 42379.

It is an arithmetic number, because the mean of its divisors is an integer number (23451120).

Almost surely, 2^243641434 is an apocalyptic number.

243641434 is a deficient number, since it is larger than the sum of its proper divisors (131576486).

243641434 is a wasteful number, since it uses less digits than its factorization.

243641434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6725.

The product of its digits is 27648, while the sum is 31.

The square root of 243641434 is about 15609.0177141292. The cubic root of 243641434 is about 624.5737330204.

Adding to 243641434 its reverse (434146342), we get a palindrome (677787776).

The spelling of 243641434 in words is "two hundred forty-three million, six hundred forty-one thousand, four hundred thirty-four".