204242043 has 16 divisors (see below), whose sum is σ = 282700800. Its totient is φ = 131022240.

The previous prime is 204242023. The next prime is 204242083. The reversal of 204242043 is 340242402.

It is not a de Polignac number, because 204242043 - 2⁶ = 204241979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204242023) 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, 10513 + ... + 22781.

It is an arithmetic number, because the mean of its divisors is an integer number (17668800).

Almost surely, 2^204242043 is an apocalyptic number.

204242043 is a deficient number, since it is larger than the sum of its proper divisors (78458757).

204242043 is a wasteful number, since it uses less digits than its factorization.

204242043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12482.

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 204242043 is about 14291.3275450533. The cubic root of 204242043 is about 588.9092583529.

Adding to 204242043 its reverse (340242402), we get a palindrome (544484445).

The spelling of 204242043 in words is "two hundred four million, two hundred forty-two thousand, forty-three".