243442132 has 12 divisors (see below), whose sum is σ = 439766656. Its totient is φ = 117794520.

The previous prime is 243442127. The next prime is 243442141. The reversal of 243442132 is 231244342.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 243442097 and 243442106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 981498 + ... + 981745.

Almost surely, 2^243442132 is an apocalyptic number.

It is an amenable number.

243442132 is a deficient number, since it is larger than the sum of its proper divisors (196324524).

243442132 is a wasteful number, since it uses less digits than its factorization.

243442132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963278 (or 1963276 counting only the distinct ones).

The product of its digits is 4608, while the sum is 25.

The square root of 243442132 is about 15602.6322138285. The cubic root of 243442132 is about 624.4033832988.

Adding to 243442132 its reverse (231244342), we get a palindrome (474686474).

The spelling of 243442132 in words is "two hundred forty-three million, four hundred forty-two thousand, one hundred thirty-two".