204023433140 has 24 divisors (see below), whose sum is σ = 453652105032. Its totient is φ = 76808821760.

The previous prime is 204023433121. The next prime is 204023433149. The reversal of 204023433140 is 41334320402.

It can be written as a sum of positive squares in 4 ways, for example, as 11586800164 + 192436632976 = 107642^2 + 438676^2 .

It is a super-2 number, since 2×204023433140² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204023433149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300034121 + ... + 300034800.

It is an arithmetic number, because the mean of its divisors is an integer number (18902171043).

Almost surely, 2^204023433140 is an apocalyptic number.

204023433140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204023433140 is an abundant number, since it is smaller than the sum of its proper divisors (249628671892).

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

204023433140 is a wasteful number, since it uses less digits than its factorization.

204023433140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600068947 (or 600068945 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 204023433140 its reverse (41334320402), we get a palindrome (245357753542).

The spelling of 204023433140 in words is "two hundred four billion, twenty-three million, four hundred thirty-three thousand, one hundred forty".