344649880 has 16 divisors (see below), whose sum is σ = 775462320. Its totient is φ = 137859936.

The previous prime is 344649869. The next prime is 344649881. The reversal of 344649880 is 88946443.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 344649880.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344649881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4308084 + ... + 4308163.

It is an arithmetic number, because the mean of its divisors is an integer number (48466395).

Almost surely, 2^344649880 is an apocalyptic number.

It is an amenable number.

344649880 is an abundant number, since it is smaller than the sum of its proper divisors (430812440).

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

344649880 is a wasteful number, since it uses less digits than its factorization.

344649880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8616258 (or 8616254 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 46.

The square root of 344649880 is about 18564.7483150190. The cubic root of 344649880 is about 701.1205725571.

It can be divided in two parts, 34464 and 9880, that added together give a palindrome (44344).

The spelling of 344649880 in words is "three hundred forty-four million, six hundred forty-nine thousand, eight hundred eighty".