340040 has 16 divisors (see below), whose sum is σ = 765180. Its totient is φ = 136000.

The previous prime is 340037. The next prime is 340049. The reversal of 340040 is 40043.

340040 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 306916 + 33124 = 554^2 + 182^2 .

It is not an unprimeable number, because it can be changed into a prime (340049) 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, 4211 + ... + 4290.

2³⁴⁰⁰⁴⁰ is an apocalyptic number.

It is an amenable number.

340040 is an abundant number, since it is smaller than the sum of its proper divisors (425140).

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

340040 is a wasteful number, since it uses less digits than its factorization.

340040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8512 (or 8508 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 340040 is about 583.1294881928. The cubic root of 340040 is about 69.7980574332.

Adding to 340040 its reverse (40043), we get a palindrome (380083).

The spelling of 340040 in words is "three hundred forty thousand, forty", and thus it is an iban number.