340204042 has 8 divisors (see below), whose sum is σ = 514988100. Its totient is φ = 168541344.

The previous prime is 340204037. The next prime is 340204049. The reversal of 340204042 is 240402043.

It can be written as a sum of positive squares in 2 ways, for example, as 301751641 + 38452401 = 17371^2 + 6201^2 .

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

It is not an unprimeable number, because it can be changed into a prime (340204049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 780067 + ... + 780502.

Almost surely, 2^340204042 is an apocalyptic number.

340204042 is a deficient number, since it is larger than the sum of its proper divisors (174784058).

340204042 is a wasteful number, since it uses less digits than its factorization.

340204042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1560680.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 340204042 is about 18444.6209502933. The cubic root of 340204042 is about 698.0927961508.

Adding to 340204042 its reverse (240402043), we get a palindrome (580606085).

The spelling of 340204042 in words is "three hundred forty million, two hundred four thousand, forty-two".