207345730 has 8 divisors (see below), whose sum is σ = 373222332. Its totient is φ = 82938288.

The previous prime is 207345709. The next prime is 207345739. The reversal of 207345730 is 37543702.

It can be written as a sum of positive squares in 2 ways, for example, as 198049329 + 9296401 = 14073^2 + 3049^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 207345692 and 207345701.

It is not an unprimeable number, because it can be changed into a prime (207345739) 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 3 ways as a sum of consecutive naturals, for example, 10367277 + ... + 10367296.

Almost surely, 2^207345730 is an apocalyptic number.

207345730 is a deficient number, since it is larger than the sum of its proper divisors (165876602).

207345730 is a wasteful number, since it uses less digits than its factorization.

207345730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20734580.

The product of its (nonzero) digits is 17640, while the sum is 31.

The square root of 207345730 is about 14399.5045053641. The cubic root of 207345730 is about 591.8773200408.

The spelling of 207345730 in words is "two hundred seven million, three hundred forty-five thousand, seven hundred thirty".