340040213440 has 112 divisors (see below), whose sum is σ = 817861927392. Its totient is φ = 134650351616.

The previous prime is 340040213423. The next prime is 340040213503. The reversal of 340040213440 is 44312040043.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68374794 + ... + 68379766.

Almost surely, 2^340040213440 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 340040213440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (408930963696).

340040213440 is an abundant number, since it is smaller than the sum of its proper divisors (477821713952).

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

340040213440 is a wasteful number, since it uses less digits than its factorization.

340040213440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7094 (or 7084 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 340040213440 its reverse (44312040043), we get a palindrome (384352253483).

The spelling of 340040213440 in words is "three hundred forty billion, forty million, two hundred thirteen thousand, four hundred forty".