344404242 has 120 divisors (see below), whose sum is σ = 939018444. Its totient is φ = 90683712.

The previous prime is 344404219. The next prime is 344404253. The reversal of 344404242 is 242404443.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 247401441 + 97002801 = 15729^2 + 9849^2 .

It is a super-2 number, since 2×344404242² = 237228563815189128, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 561528 + ... + 562140.

Almost surely, 2^344404242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 344404242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (469509222).

344404242 is an abundant number, since it is smaller than the sum of its proper divisors (594614202).

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

344404242 is a wasteful number, since it uses less digits than its factorization.

344404242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662 (or 638 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 27.

The square root of 344404242 is about 18558.1314253348. The cubic root of 344404242 is about 700.9539660030.

Adding to 344404242 its reverse (242404443), we get a palindrome (586808685).

The spelling of 344404242 in words is "three hundred forty-four million, four hundred four thousand, two hundred forty-two".