340706819 has 4 divisors (see below), whose sum is σ = 352455360. Its totient is φ = 328958280.

The previous prime is 340706801. The next prime is 340706831. The reversal of 340706819 is 918607043.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 340706819 - 2¹⁶ = 340641283 is a prime.

It is a super-2 number, since 2×340706819² = 232162273026197522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340706869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5874227 + ... + 5874284.

It is an arithmetic number, because the mean of its divisors is an integer number (88113840).

Almost surely, 2^340706819 is an apocalyptic number.

340706819 is a deficient number, since it is larger than the sum of its proper divisors (11748541).

340706819 is a wasteful number, since it uses less digits than its factorization.

340706819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11748540.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 340706819 is about 18458.2452849668. The cubic root of 340706819 is about 698.4365234409.

The spelling of 340706819 in words is "three hundred forty million, seven hundred six thousand, eight hundred nineteen".