340040400208 has 40 divisors (see below), whose sum is σ = 680873365760. Its totient is φ = 164343928320.

The previous prime is 340040400199. The next prime is 340040400209. The reversal of 340040400208 is 802004040043.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340040400209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27016 + ... + 825112.

It is an arithmetic number, because the mean of its divisors is an integer number (17021834144).

Almost surely, 2^340040400208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 340040400208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (340436682880).

340040400208 is an abundant number, since it is smaller than the sum of its proper divisors (340832965552).

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

340040400208 is a wasteful number, since it uses less digits than its factorization.

340040400208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798995 (or 798989 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The spelling of 340040400208 in words is "three hundred forty billion, forty million, four hundred thousand, two hundred eight".