340553705 has 4 divisors (see below), whose sum is σ = 408664452. Its totient is φ = 272442960.

The previous prime is 340553683. The next prime is 340553737. The reversal of 340553705 is 507355043.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 50737129 + 289816576 = 7123^2 + 17024^2 .

It is not a de Polignac number, because 340553705 - 2⁸ = 340553449 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34055366 + ... + 34055375.

It is an arithmetic number, because the mean of its divisors is an integer number (102166113).

Almost surely, 2^340553705 is an apocalyptic number.

It is an amenable number.

340553705 is a deficient number, since it is larger than the sum of its proper divisors (68110747).

340553705 is an equidigital number, since it uses as much as digits as its factorization.

340553705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68110746.

The product of its (nonzero) digits is 31500, while the sum is 32.

The square root of 340553705 is about 18454.0972415342. The cubic root of 340553705 is about 698.3318817298.

The spelling of 340553705 in words is "three hundred forty million, five hundred fifty-three thousand, seven hundred five".