340038 has 20 divisors (see below), whose sum is σ = 762300. Its totient is φ = 113292.

The previous prime is 340037. The next prime is 340049. The reversal of 340038 is 830043.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 340038.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340031) 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 9 ways as a sum of consecutive naturals, for example, 888 + ... + 1211.

It is an arithmetic number, because the mean of its divisors is an integer number (38115).

2³⁴⁰⁰³⁸ is an apocalyptic number.

340038 is an abundant number, since it is smaller than the sum of its proper divisors (422262).

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

340038 is a wasteful number, since it uses less digits than its factorization.

340038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2113 (or 2104 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 340038 is about 583.1277733053. The cubic root of 340038 is about 69.7979205900.

The spelling of 340038 in words is "three hundred forty thousand, thirty-eight".