340403370040 has 32 divisors (see below), whose sum is σ = 765934303680. Its totient is φ = 136156597632.

The previous prime is 340403370031. The next prime is 340403370059. The reversal of 340403370040 is 40073304043.

It is a junction number, because it is equal to n+sod(n) for n = 340403369990 and 340403370008.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1153342 + ... + 1418098.

It is an arithmetic number, because the mean of its divisors is an integer number (23935446990).

Almost surely, 2^340403370040 is an apocalyptic number.

It is an amenable number.

340403370040 is an abundant number, since it is smaller than the sum of its proper divisors (425530933640).

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

340403370040 is a wasteful number, since it uses less digits than its factorization.

340403370040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296911 (or 296907 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 28.

Adding to 340403370040 its reverse (40073304043), we get a palindrome (380476674083).

The spelling of 340403370040 in words is "three hundred forty billion, four hundred three million, three hundred seventy thousand, forty".