204636042 has 48 divisors (see below), whose sum is σ = 502625760. Its totient is φ = 59649696.

The previous prime is 204636041. The next prime is 204636049. The reversal of 204636042 is 240636402.

204636042 is a `hidden beast` number, since 20 + 4 + 636 + 0 + 4 + 2 = 666.

204636042 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 204635997 and 204636015.

It is not an unprimeable number, because it can be changed into a prime (204636041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18568 + ... + 27459.

It is an arithmetic number, because the mean of its divisors is an integer number (10471370).

Almost surely, 2^204636042 is an apocalyptic number.

204636042 is an abundant number, since it is smaller than the sum of its proper divisors (297989718).

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

204636042 is a wasteful number, since it uses less digits than its factorization.

204636042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46067 (or 46064 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 204636042 is about 14305.1054522503. The cubic root of 204636042 is about 589.2876992361.

It can be divided in two parts, 2046360 and 42, that added together give a palindrome (2046402).

The spelling of 204636042 in words is "two hundred four million, six hundred thirty-six thousand, forty-two".