345870469 has 6 divisors (see below), whose sum is σ = 402339174. Its totient is φ = 296460360.

The previous prime is 345870467. The next prime is 345870479. The reversal of 345870469 is 964078543.

It can be written as a sum of positive squares in only one way, i.e., 290293444 + 55577025 = 17038^2 + 7455^2 .

It is not a de Polignac number, because 345870469 - 2¹ = 345870467 is a prime.

It is a super-2 number, since 2×345870469² = 239252762652559922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345870463) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3529242 + ... + 3529339.

It is an arithmetic number, because the mean of its divisors is an integer number (67056529).

Almost surely, 2^345870469 is an apocalyptic number.

It is an amenable number.

345870469 is a deficient number, since it is larger than the sum of its proper divisors (56468705).

345870469 is an equidigital number, since it uses as much as digits as its factorization.

345870469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7058595 (or 7058588 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 46.

The square root of 345870469 is about 18597.5930969575. The cubic root of 345870469 is about 701.9472779890.

The spelling of 345870469 in words is "three hundred forty-five million, eight hundred seventy thousand, four hundred sixty-nine".