1909340416 has 27 divisors (see below), whose sum is σ = 3812618523. Its totient is φ = 954320640.

The previous prime is 1909340413. The next prime is 1909340441. The reversal of 1909340416 is 6140439091.

The square root of 1909340416 is 43696.

It is a perfect power (a square), and thus also a powerful number.

It is a super-3 number, since 3×1909340416³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1909340413) 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 2 ways as a sum of consecutive naturals, for example, 697771 + ... + 700501.

Almost surely, 2^1909340416 is an apocalyptic number.

1909340416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1909340416 is the 43696-th square number.

It is an amenable number.

1909340416 is a deficient number, since it is larger than the sum of its proper divisors (1903278107).

1909340416 is an frugal number, since it uses more digits than its factorization.

1909340416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5478 (or 2733 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The cubic root of 1909340416 is about 1240.5886071304.

The spelling of 1909340416 in words is "one billion, nine hundred nine million, three hundred forty thousand, four hundred sixteen".