3509428409 has 8 divisors (see below), whose sum is σ = 3518480160. Its totient is φ = 3500387776.

The previous prime is 3509428397. The next prime is 3509428427. The reversal of 3509428409 is 9048249053.

3509428409 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3509428409 - 2¹⁶ = 3509362873 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 3509428409.

It is not an unprimeable number, because it can be changed into a prime (3509428469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1359482 + ... + 1362060.

It is an arithmetic number, because the mean of its divisors is an integer number (439810020).

Almost surely, 2^3509428409 is an apocalyptic number.

It is an amenable number.

3509428409 is a deficient number, since it is larger than the sum of its proper divisors (9051751).

3509428409 is a wasteful number, since it uses less digits than its factorization.

3509428409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5559.

The product of its (nonzero) digits is 311040, while the sum is 44.

The square root of 3509428409 is about 59240.4288387584. The cubic root of 3509428409 is about 1519.6566065515.

The spelling of 3509428409 in words is "three billion, five hundred nine million, four hundred twenty-eight thousand, four hundred nine".