204000042042 has 48 divisors (see below), whose sum is σ = 465305873760. Its totient is φ = 64415164896.

The previous prime is 204000042031. The next prime is 204000042067. The reversal of 204000042042 is 240240000402.

204000042042 is a `hidden beast` number, since 204 + 0 + 0 + 0 + 0 + 420 + 42 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5136553 + ... + 5176115.

It is an arithmetic number, because the mean of its divisors is an integer number (9693872370).

Almost surely, 2^204000042042 is an apocalyptic number.

204000042042 is an abundant number, since it is smaller than the sum of its proper divisors (261305831718).

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

204000042042 is a wasteful number, since it uses less digits than its factorization.

204000042042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54667 (or 54664 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 204000042042 its reverse (240240000402), we get a palindrome (444240042444).

The spelling of 204000042042 in words is "two hundred four billion, forty-two thousand, forty-two".