340844985 has 48 divisors (see below), whose sum is σ = 673689744. Its totient is φ = 157925376.

The previous prime is 340844983. The next prime is 340844993. The reversal of 340844985 is 589448043.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 5076009 + 335768976 = 2253^2 + 18324^2 .

It is not a de Polignac number, because 340844985 - 2¹ = 340844983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 340844985.

It is not an unprimeable number, because it can be changed into a prime (340844983) 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 47 ways as a sum of consecutive naturals, for example, 7192 + ... + 27081.

It is an arithmetic number, because the mean of its divisors is an integer number (14035203).

Almost surely, 2^340844985 is an apocalyptic number.

It is an amenable number.

340844985 is a deficient number, since it is larger than the sum of its proper divisors (332844759).

340844985 is a wasteful number, since it uses less digits than its factorization.

340844985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34314 (or 34311 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The square root of 340844985 is about 18461.9875690566. The cubic root of 340844985 is about 698.5309224312.

The spelling of 340844985 in words is "three hundred forty million, eight hundred forty-four thousand, nine hundred eighty-five".