344421330 has 32 divisors (see below), whose sum is σ = 901758528. Its totient is φ = 83496000.

The previous prime is 344421293. The next prime is 344421331. The reversal of 344421330 is 33124443.

It is a self number, because there is not a number n which added to its sum of digits gives 344421330.

It is not an unprimeable number, because it can be changed into a prime (344421331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 521521 + ... + 522180.

It is an arithmetic number, because the mean of its divisors is an integer number (28179954).

Almost surely, 2^344421330 is an apocalyptic number.

344421330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

344421330 is an abundant number, since it is smaller than the sum of its proper divisors (557337198).

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

344421330 is a wasteful number, since it uses less digits than its factorization.

344421330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043722.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 344421330 is about 18558.5918108029. The cubic root of 344421330 is about 700.9655586818.

Adding to 344421330 its reverse (33124443), we get a palindrome (377545773).

The spelling of 344421330 in words is "three hundred forty-four million, four hundred twenty-one thousand, three hundred thirty".