340685152240 has 20 divisors (see below), whose sum is σ = 792092979144. Its totient is φ = 136274060864.

The previous prime is 340685152141. The next prime is 340685152289. The reversal of 340685152240 is 42251586043.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 340685152193 and 340685152202.

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 3 ways as a sum of consecutive naturals, for example, 2129282122 + ... + 2129282281.

Almost surely, 2^340685152240 is an apocalyptic number.

It is an amenable number.

340685152240 is an abundant number, since it is smaller than the sum of its proper divisors (451407826904).

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

340685152240 is a wasteful number, since it uses less digits than its factorization.

340685152240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4258564416 (or 4258564410 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 40.

The spelling of 340685152240 in words is "three hundred forty billion, six hundred eighty-five million, one hundred fifty-two thousand, two hundred forty".