344200140 has 72 divisors (see below), whose sum is σ = 1051661520. Its totient is φ = 91119744.

The previous prime is 344200133. The next prime is 344200141. The reversal of 344200140 is 41002443.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (344200141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18142 + ... + 31898.

It is an arithmetic number, because the mean of its divisors is an integer number (14606410).

Almost surely, 2^344200140 is an apocalyptic number.

344200140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 344200140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (525830760).

344200140 is an abundant number, since it is smaller than the sum of its proper divisors (707461380).

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

344200140 is a wasteful number, since it uses less digits than its factorization.

344200140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13911 (or 13906 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 344200140 is about 18552.6316192609. The cubic root of 344200140 is about 700.8154714089.

Adding to 344200140 its reverse (41002443), we get a palindrome (385202583).

The spelling of 344200140 in words is "three hundred forty-four million, two hundred thousand, one hundred forty".