340530 has 16 divisors (see below), whose sum is σ = 817344. Its totient is φ = 90800.

The previous prime is 340519. The next prime is 340541. The reversal of 340530 is 35043.

It is an interprime number because it is at equal distance from previous prime (340519) and next prime (340541).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is an unprimeable number.

340530 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, 5646 + ... + 5705.

It is an arithmetic number, because the mean of its divisors is an integer number (51084).

2³⁴⁰⁵³⁰ is an apocalyptic number.

340530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

340530 is an abundant number, since it is smaller than the sum of its proper divisors (476814).

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

340530 is a wasteful number, since it uses less digits than its factorization.

340530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11361.

The product of its (nonzero) digits is 180, while the sum is 15.

The square root of 340530 is about 583.5494837629. The cubic root of 340530 is about 69.8315678371.

Adding to 340530 its reverse (35043), we get a palindrome (375573).

The spelling of 340530 in words is "three hundred forty thousand, five hundred thirty".