20340434322234 has 448 divisors, whose sum is σ = 53426246001408. Its totient is φ = 5749325568000.

The previous prime is 20340434322209. The next prime is 20340434322259. The reversal of 20340434322234 is 43222343404302.

20340434322234 is a `hidden beast` number, since 2 + 0 + 340 + 43 + 43 + 2 + 2 + 234 = 666.

It is an interprime number because it is at equal distance from previous prime (20340434322209) and next prime (20340434322259).

It is a super-2 number, since 2×20340434322234² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 2310620877 + ... + 2310629679.

It is an arithmetic number, because the mean of its divisors is an integer number (119255013396).

Almost surely, 2^{20340434322234} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20340434322234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26713123000704).

20340434322234 is an abundant number, since it is smaller than the sum of its proper divisors (33085811679174).

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

20340434322234 is a wasteful number, since it uses less digits than its factorization.

20340434322234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9025 (or 9010 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 36.

Adding to 20340434322234 its reverse (43222343404302), we get a palindrome (63562777726536).

The spelling of 20340434322234 in words is "twenty trillion, three hundred forty billion, four hundred thirty-four million, three hundred twenty-two thousand, two hundred thirty-four".