243412172 has 24 divisors (see below), whose sum is σ = 430304784. Its totient is φ = 120474432.

The previous prime is 243412163. The next prime is 243412181. The reversal of 243412172 is 271214342.

It is an interprime number because it is at equal distance from previous prime (243412163) and next prime (243412181).

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, 217358 + ... + 218474.

It is an arithmetic number, because the mean of its divisors is an integer number (17929366).

Almost surely, 2^243412172 is an apocalyptic number.

It is an amenable number.

243412172 is a deficient number, since it is larger than the sum of its proper divisors (186892612).

243412172 is a wasteful number, since it uses less digits than its factorization.

243412172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625 (or 1623 counting only the distinct ones).

The product of its digits is 2688, while the sum is 26.

The square root of 243412172 is about 15601.6720898755. The cubic root of 243412172 is about 624.3777675017.

The spelling of 243412172 in words is "two hundred forty-three million, four hundred twelve thousand, one hundred seventy-two".