204642024 has 32 divisors (see below), whose sum is σ = 514213920. Its totient is φ = 67866176.

The previous prime is 204642013. The next prime is 204642037. The reversal of 204642024 is 420246402.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 204641985 and 204642003.

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 7 ways as a sum of consecutive naturals, for example, 16914 + ... + 26369.

It is an arithmetic number, because the mean of its divisors is an integer number (16069185).

Almost surely, 2^204642024 is an apocalyptic number.

204642024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

204642024 is an abundant number, since it is smaller than the sum of its proper divisors (309571896).

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

204642024 is a wasteful number, since it uses less digits than its factorization.

204642024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43489 (or 43485 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 204642024 is about 14305.3145369125. The cubic root of 204642024 is about 589.2934412756.

Adding to 204642024 its reverse (420246402), we get a palindrome (624888426).

The spelling of 204642024 in words is "two hundred four million, six hundred forty-two thousand, twenty-four".