345416 has 8 divisors (see below), whose sum is σ = 647670. Its totient is φ = 172704.

The previous prime is 345413. The next prime is 345431. The reversal of 345416 is 614543.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 280900 + 64516 = 530^2 + 254^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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

It is a junction number, because it is equal to n+sod(n) for n = 345391 and 345400.

It is not an unprimeable number, because it can be changed into a prime (345413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21581 + ... + 21596.

2³⁴⁵⁴¹⁶ is an apocalyptic number.

It is an amenable number.

345416 is a deficient number, since it is larger than the sum of its proper divisors (302254).

345416 is a wasteful number, since it uses less digits than its factorization.

345416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43183 (or 43179 counting only the distinct ones).

The product of its digits is 1440, while the sum is 23.

The square root of 345416 is about 587.7210222546. The cubic root of 345416 is about 70.1639693566.

Adding to 345416 its reverse (614543), we get a palindrome (959959).

The spelling of 345416 in words is "three hundred forty-five thousand, four hundred sixteen".