340402030243440 has 160 divisors (see below), whose sum is σ = 1157537874834432. Its totient is φ = 82065783168000.

The previous prime is 340402030243397. The next prime is 340402030243463. The reversal of 340402030243440 is 44342030204043.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 355710456 + ... + 356666135.

Almost surely, 2^{340402030243440} is an apocalyptic number.

340402030243440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

340402030243440 is an abundant number, since it is smaller than the sum of its proper divisors (817135844590992).

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

340402030243440 is a wasteful number, since it uses less digits than its factorization.

340402030243440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712376799 (or 712376793 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 33.

Adding to 340402030243440 its reverse (44342030204043), we get a palindrome (384744060447483).

The spelling of 340402030243440 in words is "three hundred forty trillion, four hundred two billion, thirty million, two hundred forty-three thousand, four hundred forty".