204323507140 has 24 divisors (see below), whose sum is σ = 429294096000. Its totient is φ = 81688501728.

The previous prime is 204323507137. The next prime is 204323507183. The reversal of 204323507140 is 41705323402.

It is a happy number.

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, 2515342 + ... + 2595301.

It is an arithmetic number, because the mean of its divisors is an integer number (17887254000).

Almost surely, 2^204323507140 is an apocalyptic number.

204323507140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204323507140 is an abundant number, since it is smaller than the sum of its proper divisors (224970588860).

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

204323507140 is a wasteful number, since it uses less digits than its factorization.

204323507140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5112651 (or 5112649 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 31.

The spelling of 204323507140 in words is "two hundred four billion, three hundred twenty-three million, five hundred seven thousand, one hundred forty".