204002184040 has 32 divisors (see below), whose sum is σ = 459844094880. Its totient is φ = 81451685952.

The previous prime is 204002184013. The next prime is 204002184053. The reversal of 204002184040 is 40481200402.

It is a junction number, because it is equal to n+sod(n) for n = 204002183996 and 204002184014.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4639962 + ... + 4683721.

It is an arithmetic number, because the mean of its divisors is an integer number (14370127965).

Almost surely, 2^204002184040 is an apocalyptic number.

204002184040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204002184040 is an abundant number, since it is smaller than the sum of its proper divisors (255841910840).

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

204002184040 is a wasteful number, since it uses less digits than its factorization.

204002184040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9324241 (or 9324237 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 204002184040 its reverse (40481200402), we get a palindrome (244483384442).

The spelling of 204002184040 in words is "two hundred four billion, two million, one hundred eighty-four thousand, forty".