204600040 has 32 divisors (see below), whose sum is σ = 460961280. Its totient is φ = 81731392.

The previous prime is 204600029. The next prime is 204600041. The reversal of 204600040 is 40006402.

204600040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×204600040² = 83722352736003200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 204599987 and 204600023.

It is not an unprimeable number, because it can be changed into a prime (204600041) 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, 31557 + ... + 37483.

It is an arithmetic number, because the mean of its divisors is an integer number (14405040).

Almost surely, 2^204600040 is an apocalyptic number.

204600040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204600040 is an abundant number, since it is smaller than the sum of its proper divisors (256361240).

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

204600040 is a wasteful number, since it uses less digits than its factorization.

204600040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6801 (or 6797 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 204600040 is about 14303.8470349763. The cubic root of 204600040 is about 589.2531390485.

Adding to 204600040 its reverse (40006402), we get a palindrome (244606442).

The spelling of 204600040 in words is "two hundred four million, six hundred thousand, forty".