340559905 has 16 divisors (see below), whose sum is σ = 483160320. Its totient is φ = 225473472.

The previous prime is 340559903. The next prime is 340559941. The reversal of 340559905 is 509955043.

It is a happy number.

It is not a de Polignac number, because 340559905 - 2¹ = 340559903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (340559903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166749 + ... + 168778.

It is an arithmetic number, because the mean of its divisors is an integer number (30197520).

Almost surely, 2^340559905 is an apocalyptic number.

340559905 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

340559905 is a deficient number, since it is larger than the sum of its proper divisors (142600415).

340559905 is a wasteful number, since it uses less digits than its factorization.

340559905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335568.

The product of its (nonzero) digits is 121500, while the sum is 40.

The square root of 340559905 is about 18454.2652251451. The cubic root of 340559905 is about 698.3361195649.

The spelling of 340559905 in words is "three hundred forty million, five hundred fifty-nine thousand, nine hundred five".