340134021242020 has 24 divisors (see below), whose sum is σ = 714347698789368. Its totient is φ = 136040988652800.

The previous prime is 340134021242011. The next prime is 340134021242023. The reversal of 340134021242020 is 20242120431043.

It can be written as a sum of positive squares in 4 ways, for example, as 19566768352356 + 320567252889664 = 4423434^2 + 17904392^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 340134021242020.

It is not an unprimeable number, because it can be changed into a prime (340134021242023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 788519241 + ... + 788950480.

It is an arithmetic number, because the mean of its divisors is an integer number (29764487449557).

Almost surely, 2^{340134021242020} is an apocalyptic number.

It is an amenable number.

340134021242020 is an abundant number, since it is smaller than the sum of its proper divisors (374213677547348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

340134021242020 is a wasteful number, since it uses less digits than its factorization.

340134021242020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1577480511 (or 1577480509 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 340134021242020 its reverse (20242120431043), we get a palindrome (360376141673063).

The spelling of 340134021242020 in words is "three hundred forty trillion, one hundred thirty-four billion, twenty-one million, two hundred forty-two thousand, twenty".