344138355 has 64 divisors (see below), whose sum is σ = 702604800. Its totient is φ = 158060160.

The previous prime is 344138339. The next prime is 344138357. The reversal of 344138355 is 553831443.

It is not a de Polignac number, because 344138355 - 2⁴ = 344138339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (344138357) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22117 + ... + 34313.

It is an arithmetic number, because the mean of its divisors is an integer number (10978200).

Almost surely, 2^344138355 is an apocalyptic number.

344138355 is an abundant number, since it is smaller than the sum of its proper divisors (358466445).

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

344138355 is a wasteful number, since it uses less digits than its factorization.

344138355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12241 (or 12235 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 344138355 is about 18550.9664168744. The cubic root of 344138355 is about 700.7735360444.

Adding to 344138355 its reverse (553831443), we get a palindrome (897969798).

The spelling of 344138355 in words is "three hundred forty-four million, one hundred thirty-eight thousand, three hundred fifty-five".