346440 has 32 divisors (see below), whose sum is σ = 1039680. Its totient is φ = 92352.

The previous prime is 346439. The next prime is 346441. The reversal of 346440 is 44643.

346440 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (346439) and next prime (346441).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 346440.

It is not an unprimeable number, because it can be changed into a prime (346441) 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 in 7 ways as a sum of consecutive naturals, for example, 1324 + ... + 1563.

It is an arithmetic number, because the mean of its divisors is an integer number (32490).

2³⁴⁶⁴⁴⁰ is an apocalyptic number.

346440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

346440 is an abundant number, since it is smaller than the sum of its proper divisors (693240).

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

346440 is a wasteful number, since it uses less digits than its factorization.

346440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2901 (or 2897 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 346440 is about 588.5915391849. The cubic root of 346440 is about 70.2332356159.

The spelling of 346440 in words is "three hundred forty-six thousand, four hundred forty".