200308520 has 16 divisors (see below), whose sum is σ = 450694260. Its totient is φ = 80123392.

The previous prime is 200308519. The next prime is 200308523. The reversal of 200308520 is 25803002.

It can be written as a sum of positive squares in 2 ways, for example, as 174927076 + 25381444 = 13226^2 + 5038^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 200308492 and 200308501.

It is not an unprimeable number, because it can be changed into a prime (200308523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2503817 + ... + 2503896.

Almost surely, 2^200308520 is an apocalyptic number.

200308520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200308520 is an abundant number, since it is smaller than the sum of its proper divisors (250385740).

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

200308520 is a wasteful number, since it uses less digits than its factorization.

200308520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5007724 (or 5007720 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 200308520 is about 14153.0392495746. The cubic root of 200308520 is about 585.1040991361.

The spelling of 200308520 in words is "two hundred million, three hundred eight thousand, five hundred twenty".