340394897406 has 16 divisors (see below), whose sum is σ = 685687564800. Its totient is φ = 112648670808.

The previous prime is 340394897383. The next prime is 340394897449. The reversal of 340394897406 is 604798493043.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204072846 + ... + 204074513.

It is an arithmetic number, because the mean of its divisors is an integer number (42855472800).

Almost surely, 2^340394897406 is an apocalyptic number.

340394897406 is an abundant number, since it is smaller than the sum of its proper divisors (345292667394).

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

340394897406 is a wasteful number, since it uses less digits than its factorization.

340394897406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408147503.

The product of its (nonzero) digits is 15676416, while the sum is 57.

The spelling of 340394897406 in words is "three hundred forty billion, three hundred ninety-four million, eight hundred ninety-seven thousand, four hundred six".