344821350 has 48 divisors (see below), whose sum is σ = 858284352. Its totient is φ = 91616160.

The previous prime is 344821297. The next prime is 344821361. The reversal of 344821350 is 53128443.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 38389 + ... + 46511.

It is an arithmetic number, because the mean of its divisors is an integer number (17880924).

Almost surely, 2^344821350 is an apocalyptic number.

344821350 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 344821350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (429142176).

344821350 is an abundant number, since it is smaller than the sum of its proper divisors (513463002).

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

344821350 is a wasteful number, since it uses less digits than its factorization.

344821350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8421 (or 8416 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 344821350 is about 18569.3659019364. The cubic root of 344821350 is about 701.2368269741.

Adding to 344821350 its reverse (53128443), we get a palindrome (397949793).

The spelling of 344821350 in words is "three hundred forty-four million, eight hundred twenty-one thousand, three hundred fifty".