343402102312440 has 128 divisors (see below), whose sum is σ = 1037664434764800. Its totient is φ = 90912182699520.

The previous prime is 343402102312421. The next prime is 343402102312441. The reversal of 343402102312440 is 44213201204343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343402102312441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8183406 + ... + 27454914.

It is an arithmetic number, because the mean of its divisors is an integer number (8106753396600).

Almost surely, 2^{343402102312440} is an apocalyptic number.

343402102312440 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 343402102312440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (518832217382400).

343402102312440 is an abundant number, since it is smaller than the sum of its proper divisors (694262332452360).

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

343402102312440 is a wasteful number, since it uses less digits than its factorization.

343402102312440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19272597 (or 19272593 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 343402102312440 its reverse (44213201204343), we get a palindrome (387615303516783).

The spelling of 343402102312440 in words is "three hundred forty-three trillion, four hundred two billion, one hundred two million, three hundred twelve thousand, four hundred forty".