243450423 has 12 divisors (see below), whose sum is σ = 366940080. Its totient is φ = 155243616.

The previous prime is 243450413. The next prime is 243450479. The reversal of 243450423 is 324054342.

It is not a de Polignac number, because 243450423 - 2⁸ = 243450167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243450413) 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 11 ways as a sum of consecutive naturals, for example, 587838 + ... + 588251.

It is an arithmetic number, because the mean of its divisors is an integer number (30578340).

Almost surely, 2^243450423 is an apocalyptic number.

243450423 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

243450423 is a deficient number, since it is larger than the sum of its proper divisors (123489657).

243450423 is a wasteful number, since it uses less digits than its factorization.

243450423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176118 (or 1176115 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

The square root of 243450423 is about 15602.8979039152. The cubic root of 243450423 is about 624.4104717318.

The spelling of 243450423 in words is "two hundred forty-three million, four hundred fifty thousand, four hundred twenty-three".