344221140 has 48 divisors (see below), whose sum is σ = 972844992. Its totient is φ = 90932736.

The previous prime is 344221127. The next prime is 344221147. The reversal of 344221140 is 41122443.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344221147) 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, 20389 + ... + 33228.

It is an arithmetic number, because the mean of its divisors is an integer number (20267604).

Almost surely, 2^344221140 is an apocalyptic number.

344221140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

344221140 is an abundant number, since it is smaller than the sum of its proper divisors (628623852).

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

344221140 is a wasteful number, since it uses less digits than its factorization.

344221140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53736 (or 53734 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 344221140 is about 18553.1975680744. The cubic root of 344221140 is about 700.8297236069.

Adding to 344221140 its reverse (41122443), we get a palindrome (385343583).

The spelling of 344221140 in words is "three hundred forty-four million, two hundred twenty-one thousand, one hundred forty".