343400042 has 8 divisors (see below), whose sum is σ = 515728416. Its totient is φ = 171490572.

The previous prime is 343400041. The next prime is 343400093. The reversal of 343400042 is 240004343.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 343399987 and 343400023.

It is not an unprimeable number, because it can be changed into a prime (343400041) 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, 102668 + ... + 105959.

It is an arithmetic number, because the mean of its divisors is an integer number (64466052).

Almost surely, 2^343400042 is an apocalyptic number.

343400042 is a deficient number, since it is larger than the sum of its proper divisors (172328374).

343400042 is a wasteful number, since it uses less digits than its factorization.

343400042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209452.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 343400042 is about 18531.0561490704. The cubic root of 343400042 is about 700.2720316852.

Adding to 343400042 its reverse (240004343), we get a palindrome (583404385).

The spelling of 343400042 in words is "three hundred forty-three million, four hundred thousand, forty-two".