345078 has 24 divisors (see below), whose sum is σ = 787800. Its totient is φ = 108864.

The previous prime is 345067. The next prime is 345089. The reversal of 345078 is 870543.

345078 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 (345067) and next prime (345089).

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

It is a congruent number.

It is an unprimeable number.

345078 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 163 + ... + 846.

It is an arithmetic number, because the mean of its divisors is an integer number (32825).

2³⁴⁵⁰⁷⁸ is an apocalyptic number.

345078 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

345078 is an abundant number, since it is smaller than the sum of its proper divisors (442722).

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

345078 is a wasteful number, since it uses less digits than its factorization.

345078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036 (or 1033 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 345078 is about 587.4334004804. The cubic root of 345078 is about 70.1410760325.

The spelling of 345078 in words is "three hundred forty-five thousand, seventy-eight".