340544646 has 48 divisors (see below), whose sum is σ = 841355424. Its totient is φ = 98618112.

The previous prime is 340544627. The next prime is 340544669. The reversal of 340544646 is 646445043.

340544646 is a `hidden beast` number, since 3 + 4 + 0 + 5 + 4 + 4 + 646 = 666.

340544646 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 340544646.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38826 + ... + 46781.

It is an arithmetic number, because the mean of its divisors is an integer number (17528238).

Almost surely, 2^340544646 is an apocalyptic number.

340544646 is an abundant number, since it is smaller than the sum of its proper divisors (500810778).

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

340544646 is a wasteful number, since it uses less digits than its factorization.

340544646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85645 (or 85642 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

The square root of 340544646 is about 18453.8517930539. The cubic root of 340544646 is about 698.3256896133.

Adding to 340544646 its reverse (646445043), we get a palindrome (986989689).

The spelling of 340544646 in words is "three hundred forty million, five hundred forty-four thousand, six hundred forty-six".