243423654 has 8 divisors (see below), whose sum is σ = 486847320. Its totient is φ = 81141216.

The previous prime is 243423637. The next prime is 243423667. The reversal of 243423654 is 456324342.

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

243423654 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 20285299 + ... + 20285310.

It is an arithmetic number, because the mean of its divisors is an integer number (60855915).

Almost surely, 2^243423654 is an apocalyptic number.

243423654 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243423654 is a wasteful number, since it uses less digits than its factorization.

243423654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40570614.

The product of its digits is 69120, while the sum is 33.

The square root of 243423654 is about 15602.0400589154. The cubic root of 243423654 is about 624.3875848590.

Adding to 243423654 its reverse (456324342), we get a palindrome (699747996).

The spelling of 243423654 in words is "two hundred forty-three million, four hundred twenty-three thousand, six hundred fifty-four".