243428967 has 24 divisors (see below), whose sum is σ = 377563680. Its totient is φ = 150581760.

The previous prime is 243428951. The next prime is 243428989. The reversal of 243428967 is 769824342.

It is not a de Polignac number, because 243428967 - 2⁴ = 243428951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243420967) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 342 + ... + 22067.

It is an arithmetic number, because the mean of its divisors is an integer number (15731820).

Almost surely, 2^243428967 is an apocalyptic number.

243428967 is a deficient number, since it is larger than the sum of its proper divisors (134134713).

243428967 is a wasteful number, since it uses less digits than its factorization.

243428967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22503 (or 22500 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 243428967 is about 15602.2103241816. The cubic root of 243428967 is about 624.3921274839.

The spelling of 243428967 in words is "two hundred forty-three million, four hundred twenty-eight thousand, nine hundred sixty-seven".