340305153242 has 8 divisors (see below), whose sum is σ = 510575116500. Its totient is φ = 170113447744.

The previous prime is 340305153239. The next prime is 340305153257. The reversal of 340305153242 is 242351503043.

It can be written as a sum of positive squares in 2 ways, for example, as 340039430641 + 265722601 = 583129^2 + 16301^2 .

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

It is a super-2 number, since 2×340305153242² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 340305153199 and 340305153208.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19553567 + ... + 19570962.

Almost surely, 2^340305153242 is an apocalyptic number.

340305153242 is a deficient number, since it is larger than the sum of its proper divisors (170269963258).

340305153242 is a wasteful number, since it uses less digits than its factorization.

340305153242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39128880.

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 340305153242 its reverse (242351503043), we get a palindrome (582656656285).

The spelling of 340305153242 in words is "three hundred forty billion, three hundred five million, one hundred fifty-three thousand, two hundred forty-two".