340209834 has 8 divisors (see below), whose sum is σ = 680419680. Its totient is φ = 113403276.

The previous prime is 340209827. The next prime is 340209901. The reversal of 340209834 is 438902043.

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

340209834 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 340209795 and 340209804.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28350814 + ... + 28350825.

It is an arithmetic number, because the mean of its divisors is an integer number (85052460).

Almost surely, 2^340209834 is an apocalyptic number.

340209834 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

340209834 is a wasteful number, since it uses less digits than its factorization.

340209834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56701644.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 340209834 is about 18444.7779601707. Note that the first 3 decimals coincide. The cubic root of 340209834 is about 698.0967578228.

The spelling of 340209834 in words is "three hundred forty million, two hundred nine thousand, eight hundred thirty-four".