340242845 has 8 divisors (see below), whose sum is σ = 432308664. Its totient is φ = 256182784.

The previous prime is 340242839. The next prime is 340242883. The reversal of 340242845 is 548242043.

It can be written as a sum of positive squares in 4 ways, for example, as 9803161 + 330439684 = 3131^2 + 18178^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 340242845 - 2⁸ = 340242589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2001344 + ... + 2001513.

It is an arithmetic number, because the mean of its divisors is an integer number (54038583).

Almost surely, 2^340242845 is an apocalyptic number.

It is an amenable number.

340242845 is a deficient number, since it is larger than the sum of its proper divisors (92065819).

340242845 is a wasteful number, since it uses less digits than its factorization.

340242845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4002879.

The product of its (nonzero) digits is 30720, while the sum is 32.

The square root of 340242845 is about 18445.6727987894. The cubic root of 340242845 is about 698.1193361695.

Adding to 340242845 its reverse (548242043), we get a palindrome (888484888).

The spelling of 340242845 in words is "three hundred forty million, two hundred forty-two thousand, eight hundred forty-five".