204047450040 has 128 divisors (see below), whose sum is σ = 699682613760. Its totient is φ = 46633327104.

The previous prime is 204047450021. The next prime is 204047450041. The reversal of 204047450040 is 40054740402.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204047450041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10845922 + ... + 10864718.

It is an arithmetic number, because the mean of its divisors is an integer number (5466270420).

Almost surely, 2^204047450040 is an apocalyptic number.

204047450040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204047450040 is an abundant number, since it is smaller than the sum of its proper divisors (495635163720).

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

204047450040 is a wasteful number, since it uses less digits than its factorization.

204047450040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31741 (or 31737 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 30.

The spelling of 204047450040 in words is "two hundred four billion, forty-seven million, four hundred fifty thousand, forty".