344242143 has 20 divisors (see below), whose sum is σ = 587701840. Its totient is φ = 196709472.

The previous prime is 344242123. The next prime is 344242177. The reversal of 344242143 is 341242443.

It is a happy number.

344242143 is a `hidden beast` number, since 3 + 442 + 4 + 214 + 3 = 666.

It is not a de Polignac number, because 344242143 - 2⁵ = 344242111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344242103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 302998 + ... + 304131.

It is an arithmetic number, because the mean of its divisors is an integer number (29385092).

Almost surely, 2^344242143 is an apocalyptic number.

344242143 is a deficient number, since it is larger than the sum of its proper divisors (243459697).

344242143 is an equidigital number, since it uses as much as digits as its factorization.

344242143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607148 (or 607139 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 344242143 is about 18553.7635804707. The cubic root of 344242143 is about 700.8439772611.

Adding to 344242143 its reverse (341242443), we get a palindrome (685484586).

The spelling of 344242143 in words is "three hundred forty-four million, two hundred forty-two thousand, one hundred forty-three".