340860689 has 8 divisors (see below), whose sum is σ = 369205032. Its totient is φ = 312819840.

The previous prime is 340860677. The next prime is 340860697. The reversal of 340860689 is 986068043.

It can be written as a sum of positive squares in 4 ways, for example, as 116100625 + 224760064 = 10775^2 + 14992^2 .

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 340860689 - 2⁴ = 340860673 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (340860389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73532 + ... + 78029.

It is an arithmetic number, because the mean of its divisors is an integer number (46150629).

Almost surely, 2^340860689 is an apocalyptic number.

It is an amenable number.

340860689 is a deficient number, since it is larger than the sum of its proper divisors (28344343).

340860689 is a wasteful number, since it uses less digits than its factorization.

340860689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151747.

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 340860689 is about 18462.4128704782. The cubic root of 340860689 is about 698.5416502416.

The spelling of 340860689 in words is "three hundred forty million, eight hundred sixty thousand, six hundred eighty-nine".