345854 has 16 divisors (see below), whose sum is σ = 550800. Its totient is φ = 162624.

The previous prime is 345853. The next prime is 345869. The reversal of 345854 is 458543.

It is a super-2 number, since 2×345854² = 239229978632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

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

It is a Curzon number.

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 345854.

It is not an unprimeable number, because it can be changed into a prime (345853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3842 + ... + 3930.

It is an arithmetic number, because the mean of its divisors is an integer number (34425).

2³⁴⁵⁸⁵⁴ is an apocalyptic number.

345854 is a deficient number, since it is larger than the sum of its proper divisors (204946).

345854 is a wasteful number, since it uses less digits than its factorization.

345854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187.

The product of its digits is 9600, while the sum is 29.

The square root of 345854 is about 588.0935299763. The cubic root of 345854 is about 70.1936136483.

The spelling of 345854 in words is "three hundred forty-five thousand, eight hundred fifty-four".