342040402 has 8 divisors (see below), whose sum is σ = 559702512. Its totient is φ = 155472900.

The previous prime is 342040379. The next prime is 342040403. The reversal of 342040402 is 204040243.

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

It is a self number, because there is not a number n which added to its sum of digits gives 342040402.

It is not an unprimeable number, because it can be changed into a prime (342040403) 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, 7773624 + ... + 7773667.

It is an arithmetic number, because the mean of its divisors is an integer number (69962814).

Almost surely, 2^342040402 is an apocalyptic number.

342040402 is a deficient number, since it is larger than the sum of its proper divisors (217662110).

342040402 is a wasteful number, since it uses less digits than its factorization.

342040402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15547304.

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

The square root of 342040402 is about 18494.3343216240. The cubic root of 342040402 is about 699.3466025372.

Adding to 342040402 its reverse (204040243), we get a palindrome (546080645).

The spelling of 342040402 in words is "three hundred forty-two million, forty thousand, four hundred two".