204025043140 has 24 divisors (see below), whose sum is σ = 428461407360. Its totient is φ = 81608337888.

The previous prime is 204025043107. The next prime is 204025043171. The reversal of 204025043140 is 41340520402.

It is a happy number.

It is a super-3 number, since 3×204025043140³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1461301 + ... + 1594819.

It is an arithmetic number, because the mean of its divisors is an integer number (17852558640).

Almost surely, 2^204025043140 is an apocalyptic number.

204025043140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204025043140 is an abundant number, since it is smaller than the sum of its proper divisors (224436364220).

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

204025043140 is a wasteful number, since it uses less digits than its factorization.

204025043140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209931 (or 209929 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 204025043140 its reverse (41340520402), we get a palindrome (245365563542).

The spelling of 204025043140 in words is "two hundred four billion, twenty-five million, forty-three thousand, one hundred forty".