345070634 has 4 divisors (see below), whose sum is σ = 517605954. Its totient is φ = 172535316.

The previous prime is 345070631. The next prime is 345070639. The reversal of 345070634 is 436070543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 436070543 = 2687 ⋅162289.

It can be written as a sum of positive squares in only one way, i.e., 294019609 + 51051025 = 17147^2 + 7145^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 345070634.

It is not an unprimeable number, because it can be changed into a prime (345070631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86267657 + ... + 86267660.

Almost surely, 2^345070634 is an apocalyptic number.

345070634 is a deficient number, since it is larger than the sum of its proper divisors (172535320).

345070634 is a wasteful number, since it uses less digits than its factorization.

345070634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172535319.

The product of its (nonzero) digits is 30240, while the sum is 32.

The square root of 345070634 is about 18576.0769270586. The cubic root of 345070634 is about 701.4057695423.

Subtracting 345070634 from its reverse (436070543), we obtain a palindrome (90999909).

The spelling of 345070634 in words is "three hundred forty-five million, seventy thousand, six hundred thirty-four".