243473331 has 16 divisors (see below), whose sum is σ = 339929856. Its totient is φ = 154715616.

The previous prime is 243473317. The next prime is 243473333. The reversal of 243473331 is 133374342.

It is not a de Polignac number, because 243473331 - 2⁷ = 243473203 is a prime.

It is a super-2 number, since 2×243473331² = 118558525816471122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (243473333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14196 + ... + 26238.

It is an arithmetic number, because the mean of its divisors is an integer number (21245616).

Almost surely, 2^243473331 is an apocalyptic number.

243473331 is a deficient number, since it is larger than the sum of its proper divisors (96456525).

243473331 is a wasteful number, since it uses less digits than its factorization.

243473331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12362.

The product of its digits is 18144, while the sum is 30.

The square root of 243473331 is about 15603.6319810485. The cubic root of 243473331 is about 624.4300562072.

The spelling of 243473331 in words is "two hundred forty-three million, four hundred seventy-three thousand, three hundred thirty-one".