345269718 has 48 divisors (see below), whose sum is σ = 771541056. Its totient is φ = 111507840.

The previous prime is 345269707. The next prime is 345269731. The reversal of 345269718 is 817962543.

345269718 is a `hidden beast` number, since 34 + 526 + 97 + 1 + 8 = 666.

It is a super-2 number, since 2×345269718² = 238422356335599048, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 179530 + ... + 181442.

It is an arithmetic number, because the mean of its divisors is an integer number (16073772).

Almost surely, 2^345269718 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 345269718, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (385770528).

345269718 is an abundant number, since it is smaller than the sum of its proper divisors (426271338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

345269718 is a wasteful number, since it uses less digits than its factorization.

345269718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2229 (or 2226 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 345269718 is about 18581.4347669926. The cubic root of 345269718 is about 701.5406325788.

It can be divided in two parts, 34526 and 9718, that added together give a palindrome (44244).

The spelling of 345269718 in words is "three hundred forty-five million, two hundred sixty-nine thousand, seven hundred eighteen".