345320330 has 8 divisors (see below), whose sum is σ = 621576612. Its totient is φ = 138128128.

The previous prime is 345320317. The next prime is 345320347. The reversal of 345320330 is 33023543.

It can be written as a sum of positive squares in 2 ways, for example, as 328370641 + 16949689 = 18121^2 + 4117^2 .

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

It is a super-2 number, since 2×345320330² = 238492260622617800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 345320296 and 345320305.

It is an unprimeable number.

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, 17266007 + ... + 17266026.

Almost surely, 2^345320330 is an apocalyptic number.

345320330 is a deficient number, since it is larger than the sum of its proper divisors (276256282).

345320330 is a wasteful number, since it uses less digits than its factorization.

345320330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34532040.

The product of its (nonzero) digits is 3240, while the sum is 23.

The square root of 345320330 is about 18582.7966140729. The cubic root of 345320330 is about 701.5749097809.

Adding to 345320330 its reverse (33023543), we get a palindrome (378343873).

The spelling of 345320330 in words is "three hundred forty-five million, three hundred twenty thousand, three hundred thirty".