344442420 has 72 divisors (see below), whose sum is σ = 1194071424. Its totient is φ = 78729408.

The previous prime is 344442391. The next prime is 344442437. The reversal of 344442420 is 24244443.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 135424 + ... + 137943.

Almost surely, 2^344442420 is an apocalyptic number.

344442420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

344442420 is an abundant number, since it is smaller than the sum of its proper divisors (849629004).

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

344442420 is a wasteful number, since it uses less digits than its factorization.

344442420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273389 (or 273384 counting only the distinct ones).

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

The square root of 344442420 is about 18559.1600025432. The cubic root of 344442420 is about 700.9798658309.

Adding to 344442420 its reverse (24244443), we get a palindrome (368686863).

It can be divided in two parts, 34444 and 2420, that added together give a square (36864 = 192²).

The spelling of 344442420 in words is "three hundred forty-four million, four hundred forty-two thousand, four hundred twenty".