340356849 has 8 divisors (see below), whose sum is σ = 518639040. Its totient is φ = 194489616.

The previous prime is 340356827. The next prime is 340356859. The reversal of 340356849 is 948653043.

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

It is not a de Polignac number, because 340356849 - 2¹¹ = 340354801 is a prime.

It is a super-2 number, since 2×340356849² = 231685569322417602, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 340356849.

It is not an unprimeable number, because it can be changed into a prime (340356859) 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, 8103714 + ... + 8103755.

It is an arithmetic number, because the mean of its divisors is an integer number (64829880).

Almost surely, 2^340356849 is an apocalyptic number.

It is an amenable number.

340356849 is a deficient number, since it is larger than the sum of its proper divisors (178282191).

340356849 is a wasteful number, since it uses less digits than its factorization.

340356849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16207479.

The product of its (nonzero) digits is 311040, while the sum is 42.

The square root of 340356849 is about 18448.7628040473. The cubic root of 340356849 is about 698.1972996109.

The spelling of 340356849 in words is "three hundred forty million, three hundred fifty-six thousand, eight hundred forty-nine".