207312020 has 24 divisors (see below), whose sum is σ = 435962184. Its totient is φ = 82809216.

The previous prime is 207312013. The next prime is 207312023. The reversal of 207312020 is 20213702.

It can be written as a sum of positive squares in 4 ways, for example, as 97732996 + 109579024 = 9886^2 + 10468^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 207312020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207312023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8294 + ... + 21986.

It is an arithmetic number, because the mean of its divisors is an integer number (18165091).

Almost surely, 2^207312020 is an apocalyptic number.

207312020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

207312020 is an abundant number, since it is smaller than the sum of its proper divisors (228650164).

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

207312020 is a wasteful number, since it uses less digits than its factorization.

207312020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14459 (or 14457 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 207312020 is about 14398.3339313964. Note that the first 3 decimals coincide. The cubic root of 207312020 is about 591.8452427533.

Adding to 207312020 its reverse (20213702), we get a palindrome (227525722).

The spelling of 207312020 in words is "two hundred seven million, three hundred twelve thousand, twenty".