3499942609 has 16 divisors (see below), whose sum is σ = 3823614720. Its totient is φ = 3190936320.

The previous prime is 3499942603. The next prime is 3499942669. The reversal of 3499942609 is 9062499943.

It is a cyclic number.

It is not a de Polignac number, because 3499942609 - 2³ = 3499942601 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3499942609.

It is not an unprimeable number, because it can be changed into a prime (3499942601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46594 + ... + 95764.

It is an arithmetic number, because the mean of its divisors is an integer number (238975920).

Almost surely, 2^3499942609 is an apocalyptic number.

It is an amenable number.

3499942609 is a deficient number, since it is larger than the sum of its proper divisors (323672111).

3499942609 is a wasteful number, since it uses less digits than its factorization.

3499942609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49320.

The product of its (nonzero) digits is 3779136, while the sum is 55.

The square root of 3499942609 is about 59160.3127865295. The cubic root of 3499942609 is about 1518.2861871840.

The spelling of 3499942609 in words is "three billion, four hundred ninety-nine million, nine hundred forty-two thousand, six hundred nine".