346402240042 has 8 divisors (see below), whose sum is σ = 519605861796. Its totient is φ = 173200286112.

The previous prime is 346402240033. The next prime is 346402240061. The reversal of 346402240042 is 240042204643.

It can be written as a sum of positive squares in 2 ways, for example, as 344664100561 + 1738139481 = 587081^2 + 41691^2 .

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

It is a super-2 number, since 2×346402240042² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 346402239986 and 346402240013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 561678 + ... + 1004134.

Almost surely, 2^346402240042 is an apocalyptic number.

346402240042 is a deficient number, since it is larger than the sum of its proper divisors (173203621754).

346402240042 is a wasteful number, since it uses less digits than its factorization.

346402240042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833912.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 346402240042 its reverse (240042204643), we get a palindrome (586444444685).

The spelling of 346402240042 in words is "three hundred forty-six billion, four hundred two million, two hundred forty thousand, forty-two".