204123342 has 16 divisors (see below), whose sum is σ = 408581712. Its totient is φ = 67985280.

The previous prime is 204123331. The next prime is 204123343. The reversal of 204123342 is 243321402.

204123342 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204123343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5659 + ... + 20982.

It is an arithmetic number, because the mean of its divisors is an integer number (25536357).

Almost surely, 2^204123342 is an apocalyptic number.

204123342 is an abundant number, since it is smaller than the sum of its proper divisors (204458370).

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

204123342 is a wasteful number, since it uses less digits than its factorization.

204123342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27923.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 204123342 is about 14287.1740382764. The cubic root of 204123342 is about 588.7951491920.

Adding to 204123342 its reverse (243321402), we get a palindrome (447444744).

The spelling of 204123342 in words is "two hundred four million, one hundred twenty-three thousand, three hundred forty-two".