207231340 has 24 divisors (see below), whose sum is σ = 436368240. Its totient is φ = 82667328.

The previous prime is 207231331. The next prime is 207231341. The reversal of 207231340 is 43132702.

It is not an unprimeable number, because it can be changed into a prime (207231341) 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, 6430 + ... + 21349.

It is an arithmetic number, because the mean of its divisors is an integer number (18182010).

Almost surely, 2^207231340 is an apocalyptic number.

207231340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

207231340 is an abundant number, since it is smaller than the sum of its proper divisors (229136900).

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

207231340 is a wasteful number, since it uses less digits than its factorization.

207231340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28161 (or 28159 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 207231340 is about 14395.5319457115. The cubic root of 207231340 is about 591.7684562909.

The spelling of 207231340 in words is "two hundred seven million, two hundred thirty-one thousand, three hundred forty".