204124242 has 16 divisors (see below), whose sum is σ = 466569792. Its totient is φ = 58321200.

The previous prime is 204124237. The next prime is 204124273. The reversal of 204124242 is 242421402.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2430009 + ... + 2430092.

It is an arithmetic number, because the mean of its divisors is an integer number (29160612).

Almost surely, 2^204124242 is an apocalyptic number.

204124242 is an abundant number, since it is smaller than the sum of its proper divisors (262445550).

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

204124242 is a wasteful number, since it uses less digits than its factorization.

204124242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4860113.

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 204124242 is about 14287.2055350233. The cubic root of 204124242 is about 588.7960145427.

Adding to 204124242 its reverse (242421402), we get a palindrome (446545644).

The spelling of 204124242 in words is "two hundred four million, one hundred twenty-four thousand, two hundred forty-two".