344205421420 has 48 divisors (see below), whose sum is σ = 826581526848. Its totient is φ = 117943499520.

The previous prime is 344205421361. The next prime is 344205421457. The reversal of 344205421420 is 24124502443.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 489091 + ... + 963130.

It is an arithmetic number, because the mean of its divisors is an integer number (17220448476).

Almost surely, 2^344205421420 is an apocalyptic number.

It is an amenable number.

344205421420 is an abundant number, since it is smaller than the sum of its proper divisors (482376105428).

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

344205421420 is a wasteful number, since it uses less digits than its factorization.

344205421420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1453930 (or 1453928 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 31.

Adding to 344205421420 its reverse (24124502443), we get a palindrome (368329923863).

It can be divided in two parts, 344205 and 421420, that added together give a square (765625 = 875²).

The spelling of 344205421420 in words is "three hundred forty-four billion, two hundred five million, four hundred twenty-one thousand, four hundred twenty".