340072705 has 16 divisors (see below), whose sum is σ = 482469120. Its totient is φ = 225150912.

The previous prime is 340072703. The next prime is 340072717. The reversal of 340072705 is 507270043.

It is not a de Polignac number, because 340072705 - 2¹ = 340072703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (340072703) 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, 166509 + ... + 168538.

It is an arithmetic number, because the mean of its divisors is an integer number (30154320).

Almost surely, 2^340072705 is an apocalyptic number.

340072705 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

340072705 is a deficient number, since it is larger than the sum of its proper divisors (142396415).

340072705 is a wasteful number, since it uses less digits than its factorization.

340072705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335088.

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 340072705 is about 18441.0603003190. The cubic root of 340072705 is about 698.0029508391.

The spelling of 340072705 in words is "three hundred forty million, seventy-two thousand, seven hundred five".