204131004 has 96 divisors (see below), whose sum is σ = 597735936. Its totient is φ = 52673280.

The previous prime is 204130987. The next prime is 204131009. The reversal of 204131004 is 400131402.

204131004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204131009) 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, 159214 + ... + 160490.

It is an arithmetic number, because the mean of its divisors is an integer number (6226416).

Almost surely, 2^204131004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204131004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298867968).

204131004 is an abundant number, since it is smaller than the sum of its proper divisors (393604932).

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

204131004 is a wasteful number, since it uses less digits than its factorization.

204131004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1475 (or 1473 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 204131004 is about 14287.4421783607. The cubic root of 204131004 is about 588.8025161299.

Adding to 204131004 its reverse (400131402), we get a palindrome (604262406).

The spelling of 204131004 in words is "two hundred four million, one hundred thirty-one thousand, four".