340303155240 has 256 divisors, whose sum is σ = 1068907622400. Its totient is φ = 86561506304.

The previous prime is 340303155209. The next prime is 340303155259. The reversal of 340303155240 is 42551303043.

It is a super-3 number, since 3×340303155240³ (a number of 36 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 340303155198 and 340303155207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 164954449 + ... + 164956511.

It is an arithmetic number, because the mean of its divisors is an integer number (4175420400).

Almost surely, 2^340303155240 is an apocalyptic number.

340303155240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 340303155240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (534453811200).

340303155240 is an abundant number, since it is smaller than the sum of its proper divisors (728604467160).

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

340303155240 is a wasteful number, since it uses less digits than its factorization.

340303155240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2656 (or 2652 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 340303155240 its reverse (42551303043), we get a palindrome (382854458283).

The spelling of 340303155240 in words is "three hundred forty billion, three hundred three million, one hundred fifty-five thousand, two hundred forty".