344040789 has 4 divisors (see below), whose sum is σ = 458721056. Its totient is φ = 229360524.

The previous prime is 344040737. The next prime is 344040863. The reversal of 344040789 is 987040443.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 344040789 - 2²³ = 335652181 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 (344040709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57340129 + ... + 57340134.

It is an arithmetic number, because the mean of its divisors is an integer number (114680264).

Almost surely, 2^344040789 is an apocalyptic number.

It is an amenable number.

344040789 is a deficient number, since it is larger than the sum of its proper divisors (114680267).

344040789 is a wasteful number, since it uses less digits than its factorization.

344040789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114680266.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 344040789 is about 18548.3365561443. The cubic root of 344040789 is about 700.7073048013.

The spelling of 344040789 in words is "three hundred forty-four million, forty thousand, seven hundred eighty-nine".