344642623 has 16 divisors (see below), whose sum is σ = 379391040. Its totient is φ = 311111424.

The previous prime is 344642611. The next prime is 344642647. The reversal of 344642623 is 326246443.

It is a de Polignac number, because none of the positive numbers 2^k-344642623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344642663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 281190 + ... + 282412.

It is an arithmetic number, because the mean of its divisors is an integer number (23711940).

Almost surely, 2^344642623 is an apocalyptic number.

344642623 is a deficient number, since it is larger than the sum of its proper divisors (34748417).

344642623 is a wasteful number, since it uses less digits than its factorization.

344642623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1698.

The product of its digits is 82944, while the sum is 34.

The square root of 344642623 is about 18564.5528629159. The cubic root of 344642623 is about 701.1156515556.

The spelling of 344642623 in words is "three hundred forty-four million, six hundred forty-two thousand, six hundred twenty-three".