345309466 has 4 divisors (see below), whose sum is σ = 517964202. Its totient is φ = 172654732.

The previous prime is 345309463. The next prime is 345309487. The reversal of 345309466 is 664903543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 664903543 = 6299 ⋅105557.

It can be written as a sum of positive squares in only one way, i.e., 299463025 + 45846441 = 17305^2 + 6771^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (345309463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86327365 + ... + 86327368.

Almost surely, 2^345309466 is an apocalyptic number.

345309466 is a deficient number, since it is larger than the sum of its proper divisors (172654736).

345309466 is a wasteful number, since it uses less digits than its factorization.

345309466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172654735.

The product of its (nonzero) digits is 233280, while the sum is 40.

The square root of 345309466 is about 18582.5042983985. The cubic root of 345309466 is about 701.5675523709.

The spelling of 345309466 in words is "three hundred forty-five million, three hundred nine thousand, four hundred sixty-six".