340641939 has 16 divisors (see below), whose sum is σ = 496030464. Its totient is φ = 206220000.

The previous prime is 340641913. The next prime is 340641941. The reversal of 340641939 is 939146043.

It is not a de Polignac number, because 340641939 - 2⁵ = 340641907 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 340641897 and 340641906.

It is not an unprimeable number, because it can be changed into a prime (340641979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27189 + ... + 37689.

It is an arithmetic number, because the mean of its divisors is an integer number (31001904).

Almost surely, 2^340641939 is an apocalyptic number.

340641939 is a deficient number, since it is larger than the sum of its proper divisors (155388525).

340641939 is a wasteful number, since it uses less digits than its factorization.

340641939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11498.

The product of its (nonzero) digits is 69984, while the sum is 39.

The square root of 340641939 is about 18456.4877211240. The cubic root of 340641939 is about 698.3921867504.

The spelling of 340641939 in words is "three hundred forty million, six hundred forty-one thousand, nine hundred thirty-nine".