204542032040 has 32 divisors (see below), whose sum is σ = 460234948680. Its totient is φ = 81814079232.

The previous prime is 204542032039. The next prime is 204542032043. The reversal of 204542032040 is 40230245402.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 194218252804 + 10323779236 = 440702^2 + 101606^2 .

It is not an unprimeable number, because it can be changed into a prime (204542032043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1481642 + ... + 1613798.

Almost surely, 2^204542032040 is an apocalyptic number.

204542032040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204542032040 is an abundant number, since it is smaller than the sum of its proper divisors (255692916640).

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

204542032040 is a wasteful number, since it uses less digits than its factorization.

204542032040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170861 (or 170857 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 26.

Adding to 204542032040 its reverse (40230245402), we get a palindrome (244772277442).

The spelling of 204542032040 in words is "two hundred four billion, five hundred forty-two million, thirty-two thousand, forty".