3649204285 has 4 divisors (see below), whose sum is σ = 4379045148. Its totient is φ = 2919363424.

The previous prime is 3649204271. The next prime is 3649204289. The reversal of 3649204285 is 5824029463.

3649204285 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5824029463 = 7 ⋅832004209.

It can be written as a sum of positive squares in 2 ways, for example, as 1969761924 + 1679442361 = 44382^2 + 40981^2 .

It is a cyclic number.

It is not a de Polignac number, because 3649204285 - 2¹¹ = 3649202237 is a prime.

It is a super-2 number, since 2×3649204285² = 26633383827324722450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3649204289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 364920424 + ... + 364920433.

It is an arithmetic number, because the mean of its divisors is an integer number (1094761287).

Almost surely, 2^3649204285 is an apocalyptic number.

It is an amenable number.

3649204285 is a deficient number, since it is larger than the sum of its proper divisors (729840863).

3649204285 is an equidigital number, since it uses as much as digits as its factorization.

3649204285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729840862.

The product of its (nonzero) digits is 414720, while the sum is 43.

The square root of 3649204285 is about 60408.6441248270. The cubic root of 3649204285 is about 1539.5698305178.

The spelling of 3649204285 in words is "three billion, six hundred forty-nine million, two hundred four thousand, two hundred eighty-five".