345436 has 36 divisors (see below), whose sum is σ = 758352. Its totient is φ = 134784.

The previous prime is 345431. The next prime is 345451. The reversal of 345436 is 634543.

345436 = T₂₂₄ + T₂₂₅ + ... + T₂₃₆.

345436 is nontrivially palindromic in base 3.

It is an alternating number because its digits alternate between odd and even.

345436 is an undulating number in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 345436.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4696 + ... + 4768.

2³⁴⁵⁴³⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 345436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (379176).

345436 is an abundant number, since it is smaller than the sum of its proper divisors (412916).

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

345436 is a wasteful number, since it uses less digits than its factorization.

345436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110 (or 95 counting only the distinct ones).

The product of its digits is 4320, while the sum is 25.

The square root of 345436 is about 587.7380368838. The cubic root of 345436 is about 70.1653235231.

Adding to 345436 its reverse (634543), we get a palindrome (979979).

The spelling of 345436 in words is "three hundred forty-five thousand, four hundred thirty-six".