345085538 has 12 divisors (see below), whose sum is σ = 602139222. Its totient is φ = 147893760.

The previous prime is 345085523. The next prime is 345085549. The reversal of 345085538 is 835580543.

It can be written as a sum of positive squares in only one way, i.e., 270832849 + 74252689 = 16457^2 + 8617^2 .

It is a junction number, because it is equal to n+sod(n) for n = 345085495 and 345085504.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1760543 + ... + 1760738.

Almost surely, 2^345085538 is an apocalyptic number.

345085538 is a deficient number, since it is larger than the sum of its proper divisors (257053684).

345085538 is a wasteful number, since it uses less digits than its factorization.

345085538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3521297 (or 3521290 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 41.

The square root of 345085538 is about 18576.4780838565. The cubic root of 345085538 is about 701.4158675725.

It can be divided in two parts, 3450 and 85538, that added together give a palindrome (88988).

The spelling of 345085538 in words is "three hundred forty-five million, eighty-five thousand, five hundred thirty-eight".