243426333 has 4 divisors (see below), whose sum is σ = 324568448. Its totient is φ = 162284220.

The previous prime is 243426331. The next prime is 243426371. The reversal of 243426333 is 333624342.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 243426333 - 2¹ = 243426331 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 243426333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243426331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40571053 + ... + 40571058.

It is an arithmetic number, because the mean of its divisors is an integer number (81142112).

Almost surely, 2^243426333 is an apocalyptic number.

It is an amenable number.

243426333 is a deficient number, since it is larger than the sum of its proper divisors (81142115).

243426333 is an equidigital number, since it uses as much as digits as its factorization.

243426333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81142114.

The product of its digits is 31104, while the sum is 30.

The square root of 243426333 is about 15602.1259128364. The cubic root of 243426333 is about 624.3898754173.

The spelling of 243426333 in words is "two hundred forty-three million, four hundred twenty-six thousand, three hundred thirty-three".