204006720 has 56 divisors (see below), whose sum is σ = 647724384. Its totient is φ = 54401536.

The previous prime is 204006713. The next prime is 204006721. The reversal of 204006720 is 27600402.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204006721) 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, 105294 + ... + 107213.

Almost surely, 2^204006720 is an apocalyptic number.

204006720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204006720 is an abundant number, since it is smaller than the sum of its proper divisors (443717664).

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

204006720 is a wasteful number, since it uses less digits than its factorization.

204006720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212527 (or 212517 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 204006720 is about 14283.0921022025. The cubic root of 204006720 is about 588.6829955165.

The spelling of 204006720 in words is "two hundred four million, six thousand, seven hundred twenty".