340140 has 24 divisors (see below), whose sum is σ = 952560. Its totient is φ = 90688.

The previous prime is 340129. The next prime is 340169. The reversal of 340140 is 41043.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a nialpdrome in base 13.

It is an unprimeable number.

340140 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2775 + ... + 2894.

It is an arithmetic number, because the mean of its divisors is an integer number (39690).

2³⁴⁰¹⁴⁰ is an apocalyptic number.

340140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

340140 is an abundant number, since it is smaller than the sum of its proper divisors (612420).

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

340140 is a wasteful number, since it uses less digits than its factorization.

340140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5681 (or 5679 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 340140 is about 583.2152261387. The cubic root of 340140 is about 69.8048989044.

Adding to 340140 its reverse (41043), we get a palindrome (381183).

The spelling of 340140 in words is "three hundred forty thousand, one hundred forty", and thus it is an iban number.