344672140 has 24 divisors (see below), whose sum is σ = 724478832. Its totient is φ = 137741760.

The previous prime is 344672129. The next prime is 344672149. The reversal of 344672140 is 41276443.

It is not an unprimeable number, because it can be changed into a prime (344672149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16062 + ... + 30778.

It is an arithmetic number, because the mean of its divisors is an integer number (30186618).

Almost surely, 2^344672140 is an apocalyptic number.

It is an amenable number.

344672140 is an abundant number, since it is smaller than the sum of its proper divisors (379806692).

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

344672140 is a wasteful number, since it uses less digits than its factorization.

344672140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15897 (or 15895 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 344672140 is about 18565.3478286834. The cubic root of 344672140 is about 701.1356667235.

The spelling of 344672140 in words is "three hundred forty-four million, six hundred seventy-two thousand, one hundred forty".