345756 has 12 divisors (see below), whose sum is σ = 806792. Its totient is φ = 115248.

The previous prime is 345749. The next prime is 345757. The reversal of 345756 is 657543.

It is a tau number, because it is divible by the number of its divisors (12).

It is an Ulam number.

It is a d-powerful number, because it can be written as 3³ + 4⁸ + 7 + 5³ + 5³ + 6⁷ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345757) by changing a digit.

345756 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14395 + ... + 14418.

2³⁴⁵⁷⁵⁶ is an apocalyptic number.

It is an amenable number.

345756 is an abundant number, since it is smaller than the sum of its proper divisors (461036).

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

345756 is a wasteful number, since it uses less digits than its factorization.

345756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28820 (or 28818 counting only the distinct ones).

The product of its digits is 12600, while the sum is 30.

The square root of 345756 is about 588.0102039931. The cubic root of 345756 is about 70.1869830817.

The spelling of 345756 in words is "three hundred forty-five thousand, seven hundred fifty-six".