340042834 has 16 divisors (see below), whose sum is σ = 516771360. Its totient is φ = 167793120.

The previous prime is 340042811. The next prime is 340042837. The reversal of 340042834 is 438240043.

It is not an unprimeable number, because it can be changed into a prime (340042837) 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, 112969 + ... + 115939.

It is an arithmetic number, because the mean of its divisors is an integer number (32298210).

Almost surely, 2^340042834 is an apocalyptic number.

340042834 is a deficient number, since it is larger than the sum of its proper divisors (176728526).

340042834 is a wasteful number, since it uses less digits than its factorization.

340042834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3705.

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 340042834 is about 18440.2503779097. The cubic root of 340042834 is about 697.9825133891.

Adding to 340042834 its reverse (438240043), we get a palindrome (778282877).

The spelling of 340042834 in words is "three hundred forty million, forty-two thousand, eight hundred thirty-four".