345047530 has 8 divisors (see below), whose sum is σ = 621085572. Its totient is φ = 138019008.

The previous prime is 345047503. The next prime is 345047531. The reversal of 345047530 is 35740543.

It can be written as a sum of positive squares in 2 ways, for example, as 282273601 + 62773929 = 16801^2 + 7923^2 .

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 = 345047492 and 345047501.

It is not an unprimeable number, because it can be changed into a prime (345047531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17252367 + ... + 17252386.

Almost surely, 2^345047530 is an apocalyptic number.

345047530 is a deficient number, since it is larger than the sum of its proper divisors (276038042).

345047530 is a wasteful number, since it uses less digits than its factorization.

345047530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34504760.

The product of its (nonzero) digits is 25200, while the sum is 31.

The square root of 345047530 is about 18575.4550415326. The cubic root of 345047530 is about 701.3901151235.

The spelling of 345047530 in words is "three hundred forty-five million, forty-seven thousand, five hundred thirty".