344316540 has 48 divisors (see below), whose sum is σ = 967613472. Its totient is φ = 91481856.

The previous prime is 344316517. The next prime is 344316571. The reversal of 344316540 is 45613443.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 344316498 and 344316507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6262 + ... + 26978.

It is an arithmetic number, because the mean of its divisors is an integer number (20158614).

Almost surely, 2^344316540 is an apocalyptic number.

344316540 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

344316540 is an abundant number, since it is smaller than the sum of its proper divisors (623296932).

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

344316540 is a wasteful number, since it uses less digits than its factorization.

344316540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21006 (or 21004 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 344316540 is about 18555.7683753597. The cubic root of 344316540 is about 700.8944620092.

Adding to 344316540 its reverse (45613443), we get a palindrome (389929983).

The spelling of 344316540 in words is "three hundred forty-four million, three hundred sixteen thousand, five hundred forty".