344223618 has 16 divisors (see below), whose sum is σ = 705239136. Its totient is φ = 111942560.

The previous prime is 344223571. The next prime is 344223679. The reversal of 344223618 is 816322443.

It is a Curzon 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, 699396 + ... + 699887.

It is an arithmetic number, because the mean of its divisors is an integer number (44077446).

Almost surely, 2^344223618 is an apocalyptic number.

344223618 is an abundant number, since it is smaller than the sum of its proper divisors (361015518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

344223618 is a wasteful number, since it uses less digits than its factorization.

344223618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1399329.

The product of its digits is 27648, while the sum is 33.

The square root of 344223618 is about 18553.2643488956. The cubic root of 344223618 is about 700.8314053280.

The spelling of 344223618 in words is "three hundred forty-four million, two hundred twenty-three thousand, six hundred eighteen".