203666242 has 16 divisors (see below), whose sum is σ = 343304640. Its totient is φ = 89912592.

The previous prime is 203666237. The next prime is 203666297. The reversal of 203666242 is 242666302.

203666242 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169692 + ... + 170887.

It is an arithmetic number, because the mean of its divisors is an integer number (21456540).

Almost surely, 2^203666242 is an apocalyptic number.

203666242 is a deficient number, since it is larger than the sum of its proper divisors (139638398).

203666242 is a wasteful number, since it uses less digits than its factorization.

203666242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340617.

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 203666242 is about 14271.1682072632. The cubic root of 203666242 is about 588.3553180470.

The spelling of 203666242 in words is "two hundred three million, six hundred sixty-six thousand, two hundred forty-two".