204204160 has 32 divisors (see below), whose sum is σ = 488177100. Its totient is φ = 81681408.

The previous prime is 204204157. The next prime is 204204163. The reversal of 204204160 is 61402402.

It is an interprime number because it is at equal distance from previous prime (204204157) and next prime (204204163).

It can be written as a sum of positive squares in 2 ways, for example, as 187361344 + 16842816 = 13688^2 + 4104^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×204204160² = 83398677922611200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (204204163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158895 + ... + 160174.

Almost surely, 2^204204160 is an apocalyptic number.

204204160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204204160 is an abundant number, since it is smaller than the sum of its proper divisors (283972940).

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

204204160 is an equidigital number, since it uses as much as digits as its factorization.

204204160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319088 (or 319076 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 204204160 is about 14290.0020993700. The cubic root of 204204160 is about 588.8728456265.

Adding to 204204160 its reverse (61402402), we get a palindrome (265606562).

The spelling of 204204160 in words is "two hundred four million, two hundred four thousand, one hundred sixty".