344345986 has 8 divisors (see below), whose sum is σ = 517355280. Its totient is φ = 171894228.

The previous prime is 344345983. The next prime is 344345993. The reversal of 344345986 is 689543443.

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

It is not an unprimeable number, because it can be changed into a prime (344345983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137836 + ... + 140311.

It is an arithmetic number, because the mean of its divisors is an integer number (64669410).

Almost surely, 2^344345986 is an apocalyptic number.

344345986 is a deficient number, since it is larger than the sum of its proper divisors (173009294).

344345986 is a wasteful number, since it uses less digits than its factorization.

344345986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278768.

The product of its digits is 1244160, while the sum is 46.

The square root of 344345986 is about 18556.5618043861. The cubic root of 344345986 is about 700.9144416381.

The spelling of 344345986 in words is "three hundred forty-four million, three hundred forty-five thousand, nine hundred eighty-six".