243426867 has 8 divisors (see below), whose sum is σ = 327783120. Its totient is φ = 160677600.

The previous prime is 243426857. The next prime is 243426877. The reversal of 243426867 is 768624342.

It is an interprime number because it is at equal distance from previous prime (243426857) and next prime (243426877).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 243426867 - 2⁴ = 243426851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243426857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 401392 + ... + 401997.

It is an arithmetic number, because the mean of its divisors is an integer number (40972890).

Almost surely, 2^243426867 is an apocalyptic number.

243426867 is a deficient number, since it is larger than the sum of its proper divisors (84356253).

243426867 is a wasteful number, since it uses less digits than its factorization.

243426867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803493.

The product of its digits is 387072, while the sum is 42.

The square root of 243426867 is about 15602.1430258795. The cubic root of 243426867 is about 624.3903319879.

The spelling of 243426867 in words is "two hundred forty-three million, four hundred twenty-six thousand, eight hundred sixty-seven".