340542242 has 8 divisors (see below), whose sum is σ = 512849232. Its totient is φ = 169592500.

The previous prime is 340542217. The next prime is 340542247. The reversal of 340542242 is 242245043.

It is a happy number.

340542242 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 (340542247) 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, 338684 + ... + 339687.

It is an arithmetic number, because the mean of its divisors is an integer number (64106154).

Almost surely, 2^340542242 is an apocalyptic number.

340542242 is a deficient number, since it is larger than the sum of its proper divisors (172306990).

340542242 is a wasteful number, since it uses less digits than its factorization.

340542242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678624.

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 340542242 is about 18453.7866574858. The cubic root of 340542242 is about 698.3240463839.

Adding to 340542242 its reverse (242245043), we get a palindrome (582787285).

The spelling of 340542242 in words is "three hundred forty million, five hundred forty-two thousand, two hundred forty-two".