243994126 has 8 divisors (see below), whose sum is σ = 374502744. Its totient is φ = 119159880.

The previous prime is 243994111. The next prime is 243994147. The reversal of 243994126 is 621499342.

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

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, 1418485 + ... + 1418656.

It is an arithmetic number, because the mean of its divisors is an integer number (46812843).

Almost surely, 2^243994126 is an apocalyptic number.

243994126 is a deficient number, since it is larger than the sum of its proper divisors (130508618).

243994126 is a wasteful number, since it uses less digits than its factorization.

243994126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2837186.

The product of its digits is 93312, while the sum is 40.

The square root of 243994126 is about 15620.3113285235. The cubic root of 243994126 is about 624.8749625067.

The spelling of 243994126 in words is "two hundred forty-three million, nine hundred ninety-four thousand, one hundred twenty-six".