340669 has 8 divisors (see below), whose sum is σ = 399168. Its totient is φ = 284640.

The previous prime is 340661. The next prime is 340687. The reversal of 340669 is 966043.

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

It is a cyclic number.

It is not a de Polignac number, because 340669 - 2³ = 340661 is a prime.

It is a super-2 number, since 2×340669² = 232110735122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307 + ... + 880.

It is an arithmetic number, because the mean of its divisors is an integer number (49896).

2³⁴⁰⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

340669 is a deficient number, since it is larger than the sum of its proper divisors (58499).

340669 is a wasteful number, since it uses less digits than its factorization.

340669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 340669 is about 583.6685703377. The cubic root of 340669 is about 69.8410679962.

The spelling of 340669 in words is "three hundred forty thousand, six hundred sixty-nine".