340015 has 8 divisors (see below), whose sum is σ = 439488. Its totient is φ = 251040.

The previous prime is 340007. The next prime is 340027. The reversal of 340015 is 510043.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 340015 - 2³ = 340007 is a prime.

It is a super-2 number, since 2×340015² = 231220400450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

340015 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 339977 and 340004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2551 + ... + 2680.

It is an arithmetic number, because the mean of its divisors is an integer number (54936).

2³⁴⁰⁰¹⁵ is an apocalyptic number.

340015 is a deficient number, since it is larger than the sum of its proper divisors (99473).

340015 is a wasteful number, since it uses less digits than its factorization.

340015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5249.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 340015 is about 583.1080517366. The cubic root of 340015 is about 69.7963468558.

Adding to 340015 its reverse (510043), we get a palindrome (850058).

The spelling of 340015 in words is "three hundred forty thousand, fifteen".