346520 has 16 divisors (see below), whose sum is σ = 779760. Its totient is φ = 138592.

The previous prime is 346501. The next prime is 346529. The reversal of 346520 is 25643.

346520 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×346520² = 240152220800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 346492 and 346501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4292 + ... + 4371.

It is an arithmetic number, because the mean of its divisors is an integer number (48735).

2³⁴⁶⁵²⁰ is an apocalyptic number.

It is an amenable number.

346520 is an abundant number, since it is smaller than the sum of its proper divisors (433240).

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

346520 is a wasteful number, since it uses less digits than its factorization.

346520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8674 (or 8670 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 346520 is about 588.6594941050. The cubic root of 346520 is about 70.2386412911.

The spelling of 346520 in words is "three hundred forty-six thousand, five hundred twenty".