344440406 has 8 divisors (see below), whose sum is σ = 528676104. Its totient is φ = 168215040.

The previous prime is 344440403. The next prime is 344440427. The reversal of 344440406 is 604044443.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344440403) 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, 2002475 + ... + 2002646.

It is an arithmetic number, because the mean of its divisors is an integer number (66084513).

Almost surely, 2^344440406 is an apocalyptic number.

344440406 is a deficient number, since it is larger than the sum of its proper divisors (184235698).

344440406 is a wasteful number, since it uses less digits than its factorization.

344440406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4005166.

The product of its (nonzero) digits is 18432, while the sum is 29.

The square root of 344440406 is about 18559.1057435427. The cubic root of 344440406 is about 700.9784995878.

Adding to 344440406 its reverse (604044443), we get a palindrome (948484849).

The spelling of 344440406 in words is "three hundred forty-four million, four hundred forty thousand, four hundred six".