340434203204340 has 144 divisors (see below), whose sum is σ = 1180179574898688. Its totient is φ = 77813026417152.

The previous prime is 340434203204339. The next prime is 340434203204387. The reversal of 340434203204340 is 43402302434043.

340434203204340 is a `hidden beast` number, since 3 + 404 + 3 + 4 + 2 + 0 + 3 + 204 + 3 + 40 = 666.

It is a super-2 number, since 2×340434203204340² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 340434203204295 and 340434203204304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 213902349 + ... + 215488011.

It is an arithmetic number, because the mean of its divisors is an integer number (8195691492352).

Almost surely, 2^{340434203204340} is an apocalyptic number.

340434203204340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

340434203204340 is an abundant number, since it is smaller than the sum of its proper divisors (839745371694348).

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

340434203204340 is a wasteful number, since it uses less digits than its factorization.

340434203204340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1756078 (or 1756073 counting only the distinct ones).

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

Adding to 340434203204340 its reverse (43402302434043), we get a palindrome (383836505638383).

The spelling of 340434203204340 in words is "three hundred forty trillion, four hundred thirty-four billion, two hundred three million, two hundred four thousand, three hundred forty".