344890019 has 2 divisors, whose sum is σ = 344890020. Its totient is φ = 344890018.

The previous prime is 344890009. The next prime is 344890081. The reversal of 344890019 is 910098443.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 344890019 - 2⁴ = 344890003 is a prime.

It is a super-2 number, since 2×344890019² = 237898250411640722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (344890009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172445009 + 172445010.

It is an arithmetic number, because the mean of its divisors is an integer number (172445010).

Almost surely, 2^344890019 is an apocalyptic number.

344890019 is a deficient number, since it is larger than the sum of its proper divisors (1).

344890019 is an equidigital number, since it uses as much as digits as its factorization.

344890019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 344890019 is about 18571.2147960224. The cubic root of 344890019 is about 701.2833728503.

The spelling of 344890019 in words is "three hundred forty-four million, eight hundred ninety thousand, nineteen".