1935343809 has 24 divisors (see below), whose sum is σ = 3333762432. Its totient is φ = 1057826880.

The previous prime is 1935343799. The next prime is 1935343831. The reversal of 1935343809 is 9083435391.

It is not a de Polignac number, because 1935343809 - 2⁹ = 1935343297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1935343859) 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 23 ways as a sum of consecutive naturals, for example, 666372 + ... + 669269.

It is an arithmetic number, because the mean of its divisors is an integer number (138906768).

Almost surely, 2^1935343809 is an apocalyptic number.

It is an amenable number.

1935343809 is a deficient number, since it is larger than the sum of its proper divisors (1398418623).

1935343809 is a wasteful number, since it uses less digits than its factorization.

1935343809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335677 (or 1335674 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The square root of 1935343809 is about 43992.5426521359. The cubic root of 1935343809 is about 1246.1951092497.

It can be divided in two parts, 1935 and 343809, that added together give a square (345744 = 588²).

The spelling of 1935343809 in words is "one billion, nine hundred thirty-five million, three hundred forty-three thousand, eight hundred nine".