344620404 has 72 divisors (see below), whose sum is σ = 938377440. Its totient is φ = 106287552.

The previous prime is 344620373. The next prime is 344620411. The reversal of 344620404 is 404026443.

344620404 is a `hidden beast` number, since 34 + 4 + 620 + 4 + 0 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23554 + ... + 35270.

It is an arithmetic number, because the mean of its divisors is an integer number (13033020).

Almost surely, 2^344620404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 344620404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (469188720).

344620404 is an abundant number, since it is smaller than the sum of its proper divisors (593757036).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

344620404 is a wasteful number, since it uses less digits than its factorization.

344620404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11789 (or 11784 counting only the distinct ones).

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

The square root of 344620404 is about 18563.9544278691. The cubic root of 344620404 is about 701.1005843310.

Adding to 344620404 its reverse (404026443), we get a palindrome (748646847).

The spelling of 344620404 in words is "three hundred forty-four million, six hundred twenty thousand, four hundred four".